@article{01506332,
title = {Pseudocharacters on a class of extensions of free groups.},
journal = {The New York Journal of Mathematics [electronic only]},
volume = {6},
year = {2000},
pages = {135-152},
zbl = {1065.39502},
language = {en},
url = {http://dml.mathdoc.fr/item/01506332}
}
Faĭziev, Valeriĭ. Pseudocharacters on a class of extensions of free groups.. The New York Journal of Mathematics [electronic only], Tome 6 (2000) pp. 135-152. http://gdmltest.u-ga.fr/item/01506332/