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by Tabachnick, David; Koivukoski, Toivo
by Koivukoski, Toivo; Tabachnick, David; Beiner, Ronald; et al.
by Koivukoski, Toivo
by Koivukoski, Toivo; Weyel, Ivo
by Koivukoski, Toivo; Tabachnick, David Edward
by Tabachnick, David Edward; Koivukoski, Toivo; Teixeira, Herminio Meireles