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Janssens, A. 1961.
Genre Heliocopris (Coleoptera Polyphaga) Fam. Scarabaeidae.
Fasc. 60(1): 3-7
Benson, R.B. 1961.
Athalia Leach (Hymenoptera Tenthredinidae).
Fasc. 60(2): 9-12
Leclercq, J. 1961.
Psenini (Hymenoptera Sphecoidea Pemphredoninae).
Fasc. 60(3): 13-36
Masner, L. 1961.
Proctotrupidae - Key to the Genera of the world (Hymenoptera Proctotrupoidea).
Fasc. 60(4): 37-47
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