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THE BEHAVIOUR OF THE CRITICAL VALUE OF AN EQUATION UNDER SMALL PERTURBATIONSZWAHLEN B.1983; NONLINEAR ANALYSIS; ISSN 0362-546X; USA; DA. 1983; VOL. 7; NO 3; PP. 301-308; BIBL. 10 REF.Article

PERTURBATIONS OF A BOUNDARY VALUE PROBLEM WITH POSITIVE, INCREASING AND CONVEX NONLINEARITYZWAHLEN B.1982; ROCKY MT. J. MATH.; ISSN 0035-7596; USA; DA. 1982; VOL. 12; NO 2; PP. 219-224; BIBL. 4 REF.Article

NUMERIEREN, SIGNIEREN UND PRAEGEN = NUMBERING, MARKING, COININGZWAHLEN B.1982; SCHWEIZ. MASCHINENMARKT; CHE; DA. 1982-04-21; VOL. 82; NO 16; PP. 34-37Article

A MINIMAX PRINCIPLE FOR THE CRITICAL VALUE OF A BOUNDARY VALUE PROBLEM WITH POSITIVE AND INCREASING NONLINEARITYZWAHLEN B.1979; Z. ANGEW. MATH. PHYS.; CHE; DA. 1979; VOL. 30; NO 4; PP. 709-712; ABS. GER; BIBL. 4 REF.Article

Praegen wie schreiben, eine neue Technik = A new coining techniqueZWAHLEN, B.Technische Rundschau. 1984, Vol 76, Num 15, issn 0040-148X, 41, 43Article

Praegen - ein Arbeitsgang mit Zukunft = Trends at coiningZWAHLEN, B.Technica. 1984, Vol 33, Num 10, pp 49-55, issn 0040-0866Article

The critical value of a nonlinear BVP and the symmetrization of the data: conjectures and counter-examplesROJAS, G; ZWAHLEN, B.Nonlinear analysis. 1987, Vol 11, Num 11, pp 1245-1255, issn 0362-546XArticle

Selenium deficiency alters thyroid hormone metabolism in guinea pigsCAMMACK, P. M; ZWAHLEN, B. A; CHRISTENSEN, M. J et al.The Journal of nutrition. 1995, Vol 125, Num 2, pp 302-308, issn 0022-3166Article