On sex-determination and karyotypic evolution in Tetranychidae Helle, W. /Gutierrez, Jean Bolland, H.R. ACARIEN PHYTOPHAGE CARYOTYPE VARIABILITE REPRODUCTION PARTHENOGENESE CYTOTAXONOMIE TETRANYCHIDAE sn 1970 text https://www.documentation.ird.fr/hor/fdi:29501 fdi:29501 Helle W., Gutierrez Jean, Bolland H.R.. On sex-determination and karyotypic evolution in Tetranychidae. sn, 1970, 10 multigr. FR