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1
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2Published 1965Other Authors: “…Ris, G. F.…”
Classmark: BK2 Ris, G. F., 1965, KleinschriftBook -
3Published 1966Other Authors: “…Ris, G. F.…”
Classmark: BK2 Ris, G. F., 1966, KleinschriftBook -
4Published 1966Other Authors: “…Ris, G. F.…”
Classmark: BK2 Ris, G. F., KleinschriftConference Proceeding Book -
5Published 1968Other Authors: “…Ris, G. F.…”
Classmark: BK2 Ris, G. F., 1968, KleinschriftBook