@article{fraga jr._conagin_1956,  title={Delineamentos e análises de experimentos com cafeeiros},  volume={15},  ISSN={0006-8705},  url={https://doi.org/10.1590/S0006-87051956000100017},  DOI={10.1590/S0006-87051956000100017},  number={unico},  journal={Bragantia},  publisher={Instituto Agronômico de Campinas},  author={Fraga Jr., C. G. and Conagin, A.},  year={1956},  pages={177–192} }