Айрийн Пепърбърг (Bulgarian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Айрийн Пепърбърг" in Bulgarian language version.

refsWebsite

Global rank Bulgarian rank

1web.archive.org

1^st place

1^st place

1alexfoundation.org

low place

low place

alexfoundation.org

Alex the African Grey parrot and subject of landmark studies of bird intelligence dies at 31, архив на оригинала от 3 август 2008, https://web.archive.org/web/20080803010408/http://www.alexfoundation.org/press_release.html, посетен на 21 май 2012

web.archive.org

Alex the African Grey parrot and subject of landmark studies of bird intelligence dies at 31, архив на оригинала от 3 август 2008, https://web.archive.org/web/20080803010408/http://www.alexfoundation.org/press_release.html, посетен на 21 май 2012