@incollection{401787, title = {Gerbert z Aurillacu - Silvestr II}, booktitle = {Matematika ve st\v redov\v ek\'e Evrop\v e}, series = {GDML\_Books}, publisher = {Prometheus}, address = {Praha}, year = {2001}, pages = {184-229}, url = {http://dml.mathdoc.fr/item/401787} }
Bečvářová, Martina. Gerbert z Aurillacu - Silvestr II, dans Matematika ve středověké Evropě, GDML_Books, (2001), pp. 184-229. http://gdmltest.u-ga.fr/item/401787/