BURT, Thomas W.; SPARKS, Bryan Wayne. Settlement agreement - Microsoft Corporation and Caldera, Inc. reach agreement to settle antitrust lawsuit [online]. 2000-01-07 [cit. 2018-08-03]. Dostupné v archivu pořízeném z originálu dne 2017-07-04. Case 1:05-cv-01087-JFM, Document 104-8, Filed 2009-11-13; NOV00107061-NOV00107071; LT2288-LT2298; Lan12S311263739.1; Exhibit A.
Software Developer Caldera sues Microsoft for Antitrust practices alleges monopolistic acts shut its DR DOS operating system out of market [online]. [cit. 2017-06-24]. Dostupné v archivu pořízeném z originálu dne 2017-06-24.
Software Developer Caldera sues Microsoft for Antitrust practices alleges monopolistic acts shut its DR DOS operating system out of market [online]. [cit. 2017-06-24]. Dostupné v archivu pořízeném z originálu dne 2017-06-24.
BURT, Thomas W.; SPARKS, Bryan Wayne. Settlement agreement - Microsoft Corporation and Caldera, Inc. reach agreement to settle antitrust lawsuit [online]. 2000-01-07 [cit. 2018-08-03]. Dostupné v archivu pořízeném z originálu dne 2017-07-04. Case 1:05-cv-01087-JFM, Document 104-8, Filed 2009-11-13; NOV00107061-NOV00107071; LT2288-LT2298; Lan12S311263739.1; Exhibit A.