@article{01348400,
title = {Mathematical model for diamond-type crystals with impurities or defects.},
journal = {Balkan Journal of Geometry and its Applications (BJGA)},
volume = {3},
year = {1998},
pages = {73-88},
zbl = {0933.74014},
language = {en},
url = {http://dml.mathdoc.fr/item/01348400}
}
Opriş, D.; Albu, I.D. Mathematical model for diamond-type crystals with impurities or defects.. Balkan Journal of Geometry and its Applications (BJGA), Tome 3 (1998) pp. 73-88. http://gdmltest.u-ga.fr/item/01348400/