@article{GDZPPN002078600, title = {\"Uber die diophantische Gleichung (1+...+...2) (1+...+...2) = ...2.}, journal = {Elemente der Mathematik}, volume = {28}, year = {1973}, pages = {67-70}, zbl = {0255.10020}, url = {http://dml.mathdoc.fr/item/GDZPPN002078600} }
Bode, Dieter. Über die diophantische Gleichung (1+...+...2) (1+...+...2) = ...2.. Elemente der Mathematik, Tome 28 (1973) pp. 67-70. http://gdmltest.u-ga.fr/item/GDZPPN002078600/