By Lach S.   in Economics Letters

ISSN:0165-1765|49|1|101-108

Elsevier‎(1995)‎

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By Gartstein E.   Lach S.   Mogilyanski D.   in Thin Solid Films

ISSN:0040-6090|319|1|182-186

Elsevier‎(1998)‎

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