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CLAUSSEN N, 1971, POWDER METALL 1 S, P225
[3]
CLAUSSEN N, TO BE PUBLISHED
[4]
CLAUSSEN N, UNPUBLISHED WORK
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LANGE FF, 1974, FRACTURE MECHANICS C, V2, P599
[8]
WEYL D, 1959, BER DEUT KERAM GES, V36, P319