PERIODIC SOLUTIONS OF ORDINARY DIFFERENTIAL EQUATIONS IN A HILBERT SPACE AND A QUASILINEAR PSEUDOPARABOLIC BOUNDARY VALUE PROBLEMHETZER G.1980; J. DIFFER. EQU.; ISSN 0022-0396; USA; DA. 1980; VOL. 38; NO 3; PP. 361-373; BIBL. 24 REF.Article

A NOTE ON PERIODIC SOLUTIONS OF SECOND ORDER SYSTEMS OF NONLINEAR AUTONOMOUS DIFFERENTIAL EQUATIONSHETZER G.1979; BULL. ACAD. POL. SCI., SCI. MATH.; POL; DA. 1979; VOL. 27; NO 1; PP. 77-82; ABS. RUS; BIBL. 6 REF.Article

BIFURCATION THEOREMS OF RABINOWITZ TYPE.HETZER G.1977; NONLINEAR ANAL., THEORY METHODS APPL.; G.B.; DA. 1977; VOL. 1; NO 5; PP. 471-479; BIBL. 18 REF.Article

A CONTINUATION THEOREM AND THE VARIATIONAL SOLVABILITY OF QUASILINEAR ELLIPTIC BOUNDARY VALUE PROBLEMS AT RESONANCEHETZER G.1980; NONLINEAR ANAL., THEORY METHODS APPL.; GBR; DA. 1980; VOL. 4; NO 4; PP. 773-780; BIBL. 12 REF.Article

A DEGREE CONTINUATION THEOREM FOR A CLASS OF COMPACTLY PERTURBED DIFFERENTIABLE FREDHOLM MAPS OF MAPS OF INDEX OHETZER G.1979; LECTURE NOTES MATH.; DEU; DA. 1979; NO 730; PP. 194-203; BIBL. 6 REF.Conference Paper

A NOTE ON A PAPER OF HOWARD SHAW CONCERNING A NONLINEAR ELLIPTIC BOUNDARY VALUE PROBLEMHETZER G.1979; J. DIFFER. EQUATIONS; USA; DA. 1979; VOL. 32; NO 2; PP. 186-192; BIBL. 3 REF.Article

ON THE EXISTENCE OF WEAK SOLUTIONS FOR SOME QUASILINEAR ELLIPTIC VARIATIONAL BOUNDARY VALUE PROBLEMS AT RESONANCE.HETZER G.1976; COMMENT. MATH. UNIV. CAROLINAE; CESKOSL.; DA. 1976; VOL. 17; NO 2; PP. 315-334; BIBL. 2 P.Article

BEEINFLUSST DIE GEBISSANIERUNG DEN KARIESZUWACHS BEI KINDERN UND JUGENDLICHEN. = LE TRAITEMENT COMPLET DE LA DENTURE INFLUENCE-T-IL LA CROISSANCE DES CARIES CHEZ LES ENFANTS ET ADOLESCENTS.PILZ W; HETZER G.1978; STOMATOL. DER D.D.R.; DDR; DA. 1978; VOL. 28; NO 12; PP. 908-911; ABS. RUS/ENG; BIBL. 1 REF.Article

GLOBAL BEHAVIOR OF BIFURCATION BRANCHES AND THE ESSENTIAL SPECTRUMHETZER G; STALLBOHM V.1978; MATH. NACHR.; DDR; DA. 1978; VOL. 86; PP. 347-360; BIBL. 14 REF.Article

ERGEBNISSE UND ERFAHRUNGEN BEI DER AUTOMATISIERTEN INFORMATIONSVERARBEITUNG KARIESEPIDEMIOLOGISCHER DATEN. = RESULTATS ET EXPERIENCE DU TRAITEMENT AUTOMATIQUE DES INFORMATIONS DES DONNEES EPIDEMIOLOGIQUES SUR LA CARIEVOIGT I; HETZER G.1977; STOMATOL. DER D.D.R.; DTSCH.; DA. 1977; VOL. 27; NO 8; PP. 537-541; ABS. RUSSE ANGL.; BIBL. 2 REF.Article

UEBER BEWERTUNGSKRITERIEN UND SCHWERPUNKTE KINDERSTOMATOLOGISCHER BETREUUNG IM SCHULALTER = LES CRITERES D'EVALUATION ET LES POINTS IMPORTANTS DU TRAITEMENT STOMATOLOGIQUE CHEZ LES ENFANTS D'AGE SCOLAIREHETZER G; PILZ W; VOIGT I et al.1979; STOMATOL. DER D.D.R.; DDR; DA. 1979; VOL. 29; NO 5; PP. 362-367; ABS. RUS/ENGArticle

ZUM THERAPEUTISCHEN STELLENWERT DER VITALAMPUTATION, VORAUSSETZUNGEN-MOEGLICHKEITEN-GRENZEN = LA PLACE THERAPEUTIQUE DE LA DEVITALISATION; PREVISIONS, POSSIBILITES, LIMITESPILZ W; HETZER G; HARZER W et al.1976; STOMATOL. DER D.D.R.; DTSCH.; DA. 1976; VOL. 26; NO 3; PP. 173-179; ABS. RUSSE ANGL.; BIBL. 25 REF.Article

A global attractor and stationary solutions for a reaction-diffusion system arising from climate modelingHETZER, G; SCHMIDT, P. G.Nonlinear analysis. 1990, Vol 14, Num 11, pp 915-926, issn 0362-546XArticle

Double resonance of semilinear operator equations in #7B-L₂-spacesHETZER, G; LANDESMAN, E. M.Journal of mathematical analysis and applications. 1987, Vol 124, Num 2, pp 520-529, issn 0022-247XArticle

On the solvability of a semilinear operator equation at resonance as applied to elliptic boundary value problems in unbounded domainsHETZER, G; LANDESMAN, E. M.Journal of differential equations (Print). 1983, Vol 50, Num 3, pp 318-329, issn 0022-0396Article

An energy balance climate model with hysteresisDIAZ, J. I; HETZER, G; TELLO, L et al.Nonlinear analysis. 2006, Vol 64, Num 9, pp 2053-2074, issn 0362-546X, 22 p.Article

Bayern in der NS-Zeit.. (La Bavière à l'époque du National-socialisme)HETZER, G; SONNENBERGER, F; TROLL, H et al.1981, XXIV-730 p, isbn 3-486-42381-9Book