@article{Virkki_1974, title={EVOLUTION OF EXTREMELY COMPLICATED SEX CHROMOSOME SYSTEMS IN BLAPS (COLEOPTERA)}, volume={58}, url={https://revistas.upr.edu/index.php/jaupr/article/view/10716}, DOI={10.46429/jaupr.v58i1.10716}, abstractNote={<p>EVOLUTION OF EXTREMELY COMPLICATED SEX CHROMOSOME SYSTEMS IN BLAPS (COLEOPTERA)</p>}, number={1}, journal={The Journal of Agriculture of the University of Puerto Rico}, author={Virkki, Niilo}, year={1974}, month={Jan.}, pages={140–149} }