B. R.  Baum, ?On some relationships between Avena sativa and A. fatua (Gramineae) as studied ffrom Canadian material?, Canadian Journal of Botany, vol. 46, pp. 1013-1024, 1968.

B. R.  Baum, ?Delimitation of the genus Avena (Gramineae)?, Canadian Journal of Botany, vol. 46, pp. 121-132, 1968.

B. R.  Baum, ?The use of lodiculae type in assessing the origin of Avena fatuoids?, Canadian Journal of Botany, vol. 47, pp. 931-944, 1969.

B. R.  Baum, ?The role of the lodicule and epiblast in determining natural hybrids of Avena sativa x fatua incultivated oats?, Canadian Journal of Botany, vol. 47, pp. 85-91, 1969.