@article{03788393, title = {A note on Gordan's theorem over cone domains.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {5}, year = {1982}, pages = {809-812}, doi = {10.1155/S016117128200074X}, zbl = {0499.90079}, language = {en}, url = {http://dml.mathdoc.fr/item/03788393} }
Skarpness, Brad; Sposito, V.A. A note on Gordan's theorem over cone domains.. International Journal of Mathematics and Mathematical Sciences, Tome 5 (1982) pp. 809-812. doi : 10.1155/S016117128200074X. http://gdmltest.u-ga.fr/item/03788393/