@article{00179241,
title = {Nonsmooth analysis approach to Isaac's equation.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {16},
year = {1993},
pages = {245-254},
doi = {10.1155/S0161171293000286},
zbl = {0781.90108},
language = {en},
url = {http://dml.mathdoc.fr/item/00179241}
}
Zaremba, Leszek S. Nonsmooth analysis approach to Isaac's equation.. International Journal of Mathematics and Mathematical Sciences, Tome 16 (1993) pp. 245-254. doi : 10.1155/S0161171293000286. http://gdmltest.u-ga.fr/item/00179241/