Angra, D. C. (1999) “Embryo culture of backcrosses between hybrids of <i>Triticum aestivum</i> Thell. and <i>Agropyron elongatum</i> Host. & Beauv”., Pesquisa Agropecuaria Brasileira, 34(2), pp. 209–215. doi: 10.1590/S1678-3921.pab1999.v34.5171.