France Tabac, 1987, 24, p. 6-8, ISSN.0296-3361 The sanitary treatment of seedbeds DE ROTON C. Methyl bromide. Di-trapex. Vapam. Basamid. Fongosan....
CORESTA Meeting, Agronomy/Phytopathology, Porto-Alegre, 1987, 3 p The Resotab experiment : a permanent network for the survey of tobacco farms DE ROTON C.