@article{PPN555509575+dmdlog23, title = {Decimum Octavum Problema. Utrum stella sit supra terram aut sub terra faciliter coniectare.}, booktitle = {Regiomontani Tabvla Sinvvm, per singula minuta extensa, vniuersam sphaericorum triangulorum scientiam complectens [1]}, series = {GDML\_Books}, publisher = {Welack}, address = {Witebergae}, year = {1584}, pages = {12}, url = {http://dml.mathdoc.fr/item/PPN555509575+dmdlog23} }
(éd.). Decimum Octavum Problema. Utrum stella sit supra terram aut sub terra faciliter coniectare., dans Regiomontani Tabvla Sinvvm, per singula minuta extensa, vniuersam sphaericorum triangulorum scientiam complectens [1], GDML_Books, (1584), p. 12. http://gdmltest.u-ga.fr/item/PPN555509575+dmdlog23/