@article{yung_wernsman_gooding_1991, title={Characterization of potato virus Y resistance from gametoclonal variation in flue-cured tobacco}, volume={81}, DOI={10.1094/Phyto-81-887}, number={8}, journal={Phytopathology}, author={Yung, C. H. and Wernsman, E. A. and Gooding, G. V.}, year={1991}, pages={887} }
 @article{yung_wernsman_1990, title={The value of gametoclonal variation in breeding for quantitative traits in flue-cured tobacco (Nicotiana tabacum L.)}, volume={80}, DOI={10.1007/bf00210076}, number={3}, journal={Theoretical and Applied Genetics}, author={Yung, C. H. and Wernsman, E. A.}, year={1990}, pages={381} }