SOLVABILITY OF INVARIANT DIFFERENTIAL OPERATORS ON HOMONOGEOUS MANIFOLDS.HELGASON S.1975; IN: DIFFER. OPER. MANIFOLDS. CORSO. CENT. INT. MAT. ESTIVO. III. CICLO; VARENNA; 1975; ROMA; ED. CREMONESE; DA. 1975; PP. 281-310; BIBL. 3 P.Conference Paper

ESTROGEN REPLACEMENT THERAPY AFTER THE MENOPAUSE. ESTROGENICITY AND METABOLIC EFFECTSHELGASON S.1982; ACTA OBSTET. GYNECOL. SCAND., SUPPL.; ISSN 0300-8835; SWE; DA. 1982; NO 107; PP. 1-29; BIBL. 117 REF.Serial Issue

INVARIANT DIFFERENTIAL EQUATIONS ON HOMOGENEOUS MANIFOLDS.HELGASON S.1977; BULL. AMER. MATH. SOC.; U.S.A.; DA. 1977; VOL. 83; NO 5; PP. 751-774; BIBL. 2 P. 1/2Article

DIFFERENTIAL GEOMETRY, LIE GROUPS, AND SYMMETRIC SPACESHELGASON S.1978; PURE APPL. MATH.; USA; DA. 1978; VOL. 80; 641 P.; BIBL. DISSEM.Serial Issue

A DUALITY FOR SYMMETRIC SPACES WITH APPLICATIONS TO GROUP REPRESENTATIONS. II. DIFFERENTIAL EQUATIONS AND EIGENSPACE REPRESENTATIONS.HELGASON S.1976; ADV. IN MATH.; U.S.A.; DA. 1976; VOL. 22; NO 2; PP. 187-219; BIBL. 1 P. 1/2Article

Advancement of smoltification in atlantic salmon (salmo salar l.) by salinity treatment : a tools for biological management in land based farming = Progression de la smoltification du saumon atlantique (salmo salar l.) par traitement de salinité : un outil de gestion biologique d'un élevage à terreHELGASON, S.Measures for success : metrology and instrumentation in aquaculture managementMesures pour réussir : métrologie et instrumentation en aquaculture. 1994, 6 p.Book Chapter

Some results on invariant differential operators on symmetric spacesHELGASON, S.American journal of mathematics (Print). 1992, Vol 114, Num 4, pp 789-811, issn 0002-9327Article

Groups and geometric analysis: integral geometry, invariant differential operators, and spherical functionsHELGASON, S.Pure and applied mathematics. 1984, Vol 113, XIX-654 pSerial Issue

EOSINOPHILURIA = EOSINOPHILURIEHELGASON S; LINDQVIST B.1972; SCAND. J. UROL. NEPHROL.; SWED.; DA. 1972; VOL. 6; NO 3; PP. 257-259; BIBL. 7 REF.Serial Issue

COMPARISON OF FOUR METHODS OF DIFFERENTIAL TYPING OF ISOLATES OF SHIGELLA SONNEIHELGASON S; OLD DC.1981; J. HYG.; ISSN 0022-1724; GBR; DA. 1981; VOL. 87; NO 3; PP. 339-355; H.T. 1; BIBL. 24 REF.Article

Huygens' principle for wave equations on symmetric spacesHELGASON, S.Journal of functional analysis. 1992, Vol 107, Num 2, pp 279-288, issn 0022-1236Article

The flat horocycle transform for a symmetric spaceHELGASON, S.Advances in mathematics (New York, NY. 1965). 1992, Vol 91, Num 2, pp 232-251, issn 0001-8708Article

ESTROGEN REPLACEMENT THERAPY AND THE MIXED LYMPHOCYTE REACTIONHELGASON S; VON SCHOULTZ B.1981; AM. J. OBSTET. GYNECOL.; ISSN 0002-9378; USA; DA. 1981; VOL. 141; NO 4; PP. 393-397; BIBL. 26 REF.Article

DISCRIMINATION BY MULTIPLE TYPING OF ISOLATES OF SHIGELLA SONNEI IN DUNDEE (1971-6)OLD DC; HELGASON S; SCOTT AC et al.1981; J. HYG.; ISSN 0022-1724; GBR; DA. 1981; VOL. 87; NO 3; PP. 357-368; BIBL. 18 REF.Article

Groundwater modelling for hydropower development in Iceland = Modélisation des eaux souterraines en vue du développement hydraulique en IslandeFREYSTEINSSON, S; HELGASON, S.Nordic hydrology. 1986, Vol 17, Num 4-5, pp 407-416, issn 0029-1277Conference Paper

NAPHTHYLAMIDASE ISOENZYMES IN SERUM DURING TREATMENT WITH ORAL CONTRACEPTIVES.BECKMAN G; BECKMAN L; HELGASON S et al.1976; INTERNATION. J. GYNAECOL. OBSTETR.; U.S.A.; DA. 1976; VOL. 14; NO 1; PP. 86-98; BIBL. 9 REF.Article

Invariant differential operators on Grassmann manifoldsGONZALEZ, F; HELGASON, S.Advances in mathematics (New York, NY. 1965). 1986, Vol 60, Num 1, pp 81-91, issn 0001-8708Article

ESTROGENIC POTENCY OF ORAL REPLACEMENT THERAPY ESTIMATED BY THE INDUCTION OF PREGNANCY ZONE PROTEINHELGASON S; DAMBER MG; VON SCHOULTZ B et al.1982; ACTA OBSTET. GYNECOL. SCAND.; ISSN 0001-6349; SWE; DA. 1982; VOL. 61; NO 1; PP. 75-79; BIBL. 23 REF.Article

GONADOTROPINS AND PROLACTIN DURING ESTROGEN REPLACEMENT THERAPYHELGASON S; CARLSTROM K; DAMBER MG et al.1981; ACTA OBSTET. GYNECOL. SCAND.; ISSN 0001-6349; SWE; DA. 1981; VOL. 60; NO 5; PP. 515-516; BIBL. 3 REF.Article

A COMPARATIVE STUDY OF THE ESTROGENIC EFFECTS OF TAMOXIFEN AND 17BETA -ESTRADIOL IN POSTMENOPAUSAL WOMENHELGASON S; WILKING N; CARLSTROM K et al.1982; J. CLIN. ENDOCRINOL. METAB.; ISSN 0021-972X; USA; DA. 1982; VOL. 54; NO 2; PP. 404-408; BIBL. 35 REF.Article

A COMPARATIVE LONGITUDINAL STUDY ON SEX HORMONE BINDING GLOBULIN CAPACITY DURING ESTROGEN REPLACEMENT THERAPYHELGASON S; DAMBER JE; DAMBER MG et al.1982; ACTA OBSTET. GYNECOL. SCAND.; ISSN 0001-6349; SWE; DA. 1982; VOL. 61; NO 2; PP. 97-100; BIBL. 19 REF.Article

SERUM NAPHTHYLAMIDASE ISOENZYMES DURING HORMONAL TREATMENT. ELECTROPHORETIC AND QUANTITATIVE STUDIES.BECKMAN G; BECKMAN L; DAMBER MG et al.1976; INTERNATION. J. GYNAECOL. OBSTETR.; U.S.A.; DA. 1976; VOL. 14; NO 6; PP. 550-552; BIBL. 9 REF.Article

EFFECTS OF VARIOUS OESTROGENS ON CIRCULATING ANDROGENS AND CORTISOL DURING REPLACEMENT THERAPY IN POST-MENOPAUSAL WOMENHELGASON S; CARLSTROM K; DAMBER MG et al.1981; MATURITAS; ISSN 0378-5122; NLD; DA. 1981; VOL. 3; NO 3-4; PP. 301-308; BIBL. 29 REF.Article

Progress of co-infections of Trichodina cooperi and T. murmanica parasitising farmed Atlantic cod Gadus morhua juveniles in IcelandKRISTMUNDSSON, A; EYDAL, M; HELGASON, S et al.Diseases of aquatic organisms. 2006, Vol 71, Num 3, pp 213-223, issn 0177-5103, 11 p.Article

Herpes zoster in children and adolescentsPETURSSON, G; HELGASON, S; GUDMUNDSSON, S et al.The Pediatric infectious disease journal. 1998, Vol 17, Num 10, pp 905-908, issn 0891-3668Article