Betrem, J. G. 1930b. De Iepenziekte en de Ipenspintkevers [The elm disease and the elm bark beetles]. Mededeelingen van het Instituut voor Plantenziekten 603-17.
Taxa (in this database) mentioned in this work, by keyword:
Betrem 1930
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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