By Stoycheva-Topalova R.   Assa J.   Buroff A.   Tzvetkov T.   Necheva S.   Drandarov N.   in Vacuum

ISSN:0042-207X|58|2|447-453

Elsevier‎(2000)‎

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By Stoycheva-Topalova R.   Assa J.   Buroff A.   Tzvetkov T.   Necheva S.   Drandarov N.   Vichev R.   in Vacuum

ISSN:0042-207X|51|2|277-279

Elsevier‎(1998)‎

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By Stoycheva-Topalova R.   Assa J.   Buroff A.   Tzvetkov T.   Necheva S.   Drandarov N.   Vichev R.   in Vacuum

ISSN:0042-207X|51|2|273-275

Elsevier‎(1998)‎

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