@article{01482197, title = {Different levels of word problems for some varieties.}, journal = {Novi Sad Journal of Mathematics}, volume = {26}, year = {1996}, pages = {93-102}, zbl = {0944.08002}, language = {en}, url = {http://dml.mathdoc.fr/item/01482197} }
Crvenković, S.; Delić, D. Different levels of word problems for some varieties.. Novi Sad Journal of Mathematics, Tome 26 (1996) pp. 93-102. http://gdmltest.u-ga.fr/item/01482197/