@article{kalcheva_dragoeva_kalchev_enchev_2009,  title={Cytotoxic and genotoxic effects of Br-containing oxaphosphole on Allium cepa L. root tip cells and mouse bone marrow cells},  volume={32},  ISSN={1415-4757},  url={https://doi.org/10.1590/S1415-47572009000200028},  DOI={10.1590/S1415-47572009000200028},  number={2},  journal={Genetics and Molecular Biology},  publisher={Sociedade Brasileira de Genética},  author={Kalcheva, Vanya P. and Dragoeva, Asya P. and Kalchev, Karamfil N. and Enchev, Dobromir D.},  year={2009},  pages={389–393} }