Chen, Q., J. Song, W.-P. Du, L.-Y. Xu, and G.-R. Yu. “Possible Origin of Triticum Petropavlovskyi Based on Cytological Analyses of Crosses Between T. Petropavlovskyi and Tetraploid, Hexaploid, and Synthetic Hexaploid (SHW-DPW) Wheat Accessions”. Spanish Journal of Agricultural Research, Vol. 14, no. 4, Jan. 2017, p. e0713, doi:10.5424/sjar/2016144-8476.