00976nam--2200337---450-99000328800020331620090703085033.0000328800USA01000328800(ALEPH)000328800USA0100032880020090703d1981----km-y0itay50------baengUSy---||||001yyQualitative analysis of physical problemsM. Gitterman, V. HalpernNew YorkAcademic press1981XIV, 274 p.23 cmFisicaMetodologiaFisicaModelli matematici530.072GITTERMAN,M.536602HALPERN,V.605244ITsalbcISBD990003288000203316530.072 GIT9782/CBS530.07200222650BKSCIRSIAV79020090703USA010850Qualitative analysis of physical problems1117932UNISA