@article{journal,
author = {Gonzalez Lorenzo, D.},
title = {Notas sobre distribuci{\'o}n, morfolog{\'i}a y biometr{\'i}a de Viperidae (Reptilia, Ophidia)},
year = {1977},
volume = {4-1},
pages = {241--263},
journal = {Miscel·l{\`a}nia Zool{\`o}gica}
}