Bettiol, W. et al. 1997. Control, with organic matter, of cucumber damping-off caused by <i>Pythium ultimum</i> Trow. Pesquisa Agropecuaria Brasileira. 32, 1 (Jan. 1997), 57–61. DOI:https://doi.org/10.1590/S1678-3921.pab1997.v32.4607.