@ARTICLE{
author={Zivkovic Dragana,Varga Jan,Konstantinidis Georgios,Vlaski Jovan,Snyder Howard M,Hadziselimovic Faruk},
year={2009},
title={Regional differences in maturation of germ cells of cryptorchid testes: role of environment},
journal={ACTA PAEDIATRICA},
volume={98},
number={8},
pages={1339-1343},
document_type={Article},
} 

@ARTICLE{
author={Zivkovic Dragana,Bica Domingos TG,Hadziselimovic Faruk},
year={2007},
title={Relationship between adult dark spermatogonia and secretory capacity of Leydig cells in cryptorchidism},
journal={BJU INTERNATIONAL},
volume={100},
number={5},
pages={1147-1149},
document_type={Article},
}