By Constantinescu B.   Bugoi R.   Constantin F.   Macovei M.   Dima S.   Garlea C.   Garlea I.   in Czechoslovak Journal of Physics

ISSN:0011-4626|49|1|385-388

Springer Publishing Company ‎(1999)‎

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By Dima S.J.   Odero A.N.   in Environmental and Resource Economics

ISSN:0924-6460|10|2|177-188

Springer Publishing Company ‎(1997)‎

Access to resources Favorite 2.4537642