Jason Scheff (English Wikipedia)

Ruhlmann, William. "Biography: Chicago". AMG. Retrieved May 17, 2010.
"ZoSia Karbowiak - All Music". AllMusic. Archived from the original on September 27, 2017. Retrieved September 26, 2017.
Jason Scheff at AllMusic. Retrieved April 17, 2013.

americansupergroup.com (Global: low place; English: low place)

"American Super Group". Archived from the original on September 20, 2017. Retrieved September 19, 2017.

bestclassicbands.com (Global: 8,609^th place; English: 5,286^th place)

Best Classic Bands Staff (September 30, 2019). "Dolenz, Rundgren, Molland Begin Beatles Tribute Tour". Best Classic Bands. Archived from the original on October 28, 2019. Retrieved November 18, 2019.

californiarocknews.com (Global: low place; English: low place)

"St Jude Charity Event". August 28, 2017. Archived from the original on September 20, 2017. Retrieved September 19, 2017.

coolkidscampaign.org (Global: low place; English: low place)

"Ken Singleton Celebrity Golf Classic". Archived from the original on September 20, 2017. Retrieved September 19, 2017.

discogs.com (Global: 91^st place; English: 122^nd place)

"Jason Scheff Discography". Discogs. Retrieved January 21, 2012.

frontparlour.com (Global: low place; English: low place)

"Leap Of Faith". Archived from the original on October 8, 2008. Retrieved September 25, 2017.

linkedin.com (Global: 895^th place; English: 692^nd place)

"Chicago's Jason Scheff 'may take a short leave' from band". Archived from the original on September 16, 2018. Retrieved May 3, 2016.

robertlammsolo.com (Global: low place; English: low place)

"Robert Lamm Music". Archived from the original on September 26, 2017. Retrieved September 25, 2017.

rock102.com (Global: low place; English: low place)

"WAQY Rock 102-Press on Scheff's Departure". Archived from the original on September 22, 2017. Retrieved September 21, 2017.

somethingelsereviews.com (Global: low place; English: 7,054^th place)

Richard Normandie (January 16, 2021). "Chicago, "Mah-Jong" from 'Stone of Sisyphus' (2008): Saturdays in the Park". somethingelsereviews.com.

ultimateclassicrock.com (Global: 902^nd place; English: 570^th place)

"Chicago Replace Longtime Singer and Bassist Jason Scheff". October 25, 2016.
"Ultimate Classic Rock-Jason Scheff Leaves Chicago". October 25, 2016. Archived from the original on November 4, 2016. Retrieved September 21, 2017.

usatoday.com (Global: 41^st place; English: 34^th place)

seahawkswire.usatoday.com

"Russell Wilson Charity Golf Tournament". June 30, 2017. Archived from the original on September 20, 2017. Retrieved September 19, 2017.

usatoday.com

"Medlock Krieger Invitational". USA Today. Archived from the original on September 20, 2017. Retrieved September 19, 2017.

web.archive.org (Global: 1^st place; English: 1^st place)

"Leap Of Faith". Archived from the original on October 8, 2008. Retrieved September 25, 2017.
"Robert Lamm Music". Archived from the original on September 26, 2017. Retrieved September 25, 2017.
"ZoSia Karbowiak Website". Archived from the original on September 20, 2017. Retrieved September 19, 2017.
"ZoSia Karbowiak - All Music". AllMusic. Archived from the original on September 27, 2017. Retrieved September 26, 2017.
"Chicago's Jason Scheff 'may take a short leave' from band". Archived from the original on September 16, 2018. Retrieved May 3, 2016.
"Ultimate Classic Rock-Jason Scheff Leaves Chicago". October 25, 2016. Archived from the original on November 4, 2016. Retrieved September 21, 2017.
"WAQY Rock 102-Press on Scheff's Departure". Archived from the original on September 22, 2017. Retrieved September 21, 2017.
"American Super Group". Archived from the original on September 20, 2017. Retrieved September 19, 2017.
"Russell Wilson Charity Golf Tournament". June 30, 2017. Archived from the original on September 20, 2017. Retrieved September 19, 2017.
"Medlock Krieger Invitational". USA Today. Archived from the original on September 20, 2017. Retrieved September 19, 2017.
"Ken Singleton Celebrity Golf Classic". Archived from the original on September 20, 2017. Retrieved September 19, 2017.
"St Jude Charity Event". August 28, 2017. Archived from the original on September 20, 2017. Retrieved September 19, 2017.
Best Classic Bands Staff (September 30, 2019). "Dolenz, Rundgren, Molland Begin Beatles Tribute Tour". Best Classic Bands. Archived from the original on October 28, 2019. Retrieved November 18, 2019.

zosiakarbowiak.com (Global: low place; English: low place)

"ZoSia Karbowiak Website". Archived from the original on September 20, 2017. Retrieved September 19, 2017.

Jason Scheff (English Wikipedia)

allmusic.com (Global: 25th place; English: 22nd place)

americansupergroup.com (Global: low place; English: low place)

bestclassicbands.com (Global: 8,609th place; English: 5,286th place)

californiarocknews.com (Global: low place; English: low place)

coolkidscampaign.org (Global: low place; English: low place)

discogs.com (Global: 91st place; English: 122nd place)

frontparlour.com (Global: low place; English: low place)

linkedin.com (Global: 895th place; English: 692nd place)

robertlammsolo.com (Global: low place; English: low place)

rock102.com (Global: low place; English: low place)

somethingelsereviews.com (Global: low place; English: 7,054th place)

ultimateclassicrock.com (Global: 902nd place; English: 570th place)

usatoday.com (Global: 41st place; English: 34th place)

seahawkswire.usatoday.com

usatoday.com

web.archive.org (Global: 1st place; English: 1st place)

zosiakarbowiak.com (Global: low place; English: low place)

allmusic.com (Global: 25^th place; English: 22^nd place)

bestclassicbands.com (Global: 8,609^th place; English: 5,286^th place)

discogs.com (Global: 91^st place; English: 122^nd place)

linkedin.com (Global: 895^th place; English: 692^nd place)

somethingelsereviews.com (Global: low place; English: 7,054^th place)

ultimateclassicrock.com (Global: 902^nd place; English: 570^th place)

usatoday.com (Global: 41^st place; English: 34^th place)

web.archive.org (Global: 1^st place; English: 1^st place)