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Nickel, U.; Ruehl, N.; Zhou, B. M.
Zeitschrift fuer Physikalische Chemie (Muenchen, Germany), 1986 , vol. 148, p. 33 - 52

Nickel, Ulrich; Chen, Yao-Hong; Schneider, Siegfried; Silva, Maria I.; Burrows, Hugh D.; Formosinho, Sebastiao J.
Journal of Physical Chemistry, 1994 , vol. 98, # 11 p. 2883 - 2888