LOW-TEMPERATURE HEAT CAPACITY OF THE PSEUDO-ONE-DIMENSIONAL MAGNETIC SYSTEMS CSMNCL₃-2H₂O, ALPHA -RBMNCL₃.2H₂O, AND CSMNBR₃.2H₂O.KOPINGA K.1977; PHYS. REV., B; U.S.A.; DA. 1977; VOL. 16; NO 1; PP. 427-432; BIBL. 27 REF.Article

ANOMALOUS BEHAVIOR OF THE LOW TEMPERATURE SPECIFIC HEAT OF NIBR₂.2H₂OKOPINGA K; DE JONGE WJM.1973; PHYS. LETTERS, A; NETHERL.; DA. 1973; VOL. 43; NO 5; PP. 415-416; BIBL. 5 REF.Serial Issue

LOW TEMPERATURE SPECIFIC HEAT OF DIETHYL-MORPHOLINIUM DITETRACYANOQUINODIMETHANE (DEM(TCNQ)₂)DE JONGE WJM; KOPINGA K.1982; SOLID STATE COMMUNICATIONS; ISSN 0038-1098; USA; DA. 1982; VOL. 42; NO 12; PP. 851-853; BIBL. 14 REF.Article

ANISOTROPIC CLASSICAL CHAIN: NUMERICAL CALCULATIONS OF THERMODYNAMIC PROPERTIESBOERSMA F; DE JONGE WJH; KOPINGA K et al.1981; PHYS. REV. B; ISSN 0163-1829; USA; DA. 1981; VOL. 23; NO 1; PP. 186-197; BIBL. 31 REF.Article

THE SUSCEPTIBILITY OF DMMC; CD: A DILUTE LD ANISOTROPIC HEISENBERG SYSTEMSCHOUTEN JC; KOPINGA K; DE JONGE WJM et al.1982; JOURNAL OF PHYSICS. C. SOLID STATE PHYSICS; ISSN 0022-3719; GBR; DA. 1982; VOL. 15; NO 4; PP. 783-793; BIBL. 20 REF.Article

MAGNETIC BEHAVIOR OF THE FERROMAGNETIC QUANTUM CHAIN SYSTEMS (C₆H₁₁NH₃)CUCL₃(CHAC) AND (C₆H₁₁NH₃)CUBR₃(CHAB)KOPINGA K; TINUS AMC; DE JONGE WJM et al.1982; PHYSICAL REVIEW. B: CONDENSED MATTER; ISSN 0163-1829; USA; DA. 1982; VOL. 25N 7; PP. 4685-4690; BIBL. 9 REF.Article

LATTICE HEAT CAPACITY OF LAYERED AND CHAINLIKE COMPOUNDS. = CHALEUR SPECIFIQUE DE RESEAU DE COMPOSES A STRUCTURES STRATIFIEE ET EN CHAINEKOPINGA K; VANDERLEEDEN P DEJONGE WJM.1975; IN: LOW TEMP. PHYS. - LT 14. INT. CONF. LOW TEMP. PHYS. 14. PROC.; OTANIEMI; 1975; AMSTERDAM; NORTH HOLLAND; DA. 1975; VOL. 4; PP. 358-361; BIBL. 6 REF.Conference Paper

SPIN-WAVE ANALYSIS OF PSEUDO-ONE-DIMENSIONAL ANTIFERROMAGNET CSMNCL₃.2H₂O.DE JONGE WJM; KOPINGA K; SWUSTE CHW et al.1976; PHYS. REV., B; U.S.A.; DA. 1976; VOL. 14; NO 5; PP. 2137-2141; BIBL. 15 REF.Article

MAGNETIC INTERACTIONS IN COBR₂.6H₂O.KOPINGA K; BORM PWM; DE JONGE WJM et al.1974; PHYS. REV., B; U.S.A.; DA. 1974; VOL. 10; NO 11; PP. 4690-4696; BIBL. 38 REF.Article

LATTICE HEAT CAPACITY OF LOW-DIMENSIONAL SYSTEMS: A PSEUDOELASTIC APPROXIMATION.KOPINGA K; VAN DER LEEDEN P; DE JONGE WJM et al.1976; PHYS. REV., B; U.S.A.; DA. 1976; VOL. 14; NO 4; PP. 1519-1530; BIBL. 22 REF.Article

THEORETICAL AND EXPERIMENTAL MAGNETIC SPECIFIC HEAT OF CSMNCL₃.2H₂O.KOPINGA K; DE NEEF T; DE JONGE WJM et al.1975; PHYS. REV., B; U.S.A.; DA. 1975; VOL. 11; NO 6; PP. 2364-2369; BIBL. 20 REF.Article

FIELD DEPENDENCE OF THE NEEL TEMPERATURE IN PSEUDO-ONE-DIMENSIONAL HEISENBERG SYSTEMS.DE JONGE WJM; HIJMANS JPAM; BOERSMA F et al.1978; PHYS. REV., B; U.S.A.; DA. 1978; VOL. 17; NO 7; PP. 2922-2925; BIBL. 14 REF.Article

SPECIFIC HEAT OF NEARLY-ONE-DIMENSIONAL TETRAMETHYL AMMONIUM MANGANESE TRICHLORIDE (TMMC) AND TETRAMETHYL AMMONIUM CADMIUM TRICHLORIDE (TMCC).DE JONGE WJM; SWUESTE CHW; KOPINGA K et al.1975; PHYS. REV., B; U.S.A.; DA. 1975; VOL. 12; NO 12; PP. 5858-5863; BIBL. 20 REF.Article

QUASI-ONE DIMENSIONAL BEHAVIOR OF (CH₃)₂NH₂MNCL₃(DMMC).TAKEDA K; SCHOUTEN JC; KOPINGA K et al.1978; PHYS. REV., B; U.S.A.; DA. 1978; VOL. 17; NO 3; PP. 1285-1288; BIBL. 8 REF.Article

SPECIFIC HEAT OF (C₆H₁₁NH₃)CUCL₃(CHAC), A SYSTEM OF FERROMAGNETIC CHAINSSCHOUTEN JC; VAN DER GEEST GJ; DE JONGE WJM et al.1980; PHYS. LETT. SECT. A; ISSN 0375-9601; NLD; DA. 1980; VOL. 78; NO 4; PP. 398-400; BIBL. 6 REF.Article

PROTON SPIN-LATTICE RELAXATION IN THE PARAMAGNETIC STATE OF A FERROMAGNETIC ISING-LIKE CHAIN SYSTEM: (CH₃)₃NHCOCL₃2H₃ONISHIHARA H; TINUS AMC; KOPINGA K et al.1982; JOURNAL OF PHYSICS. C. SOLID STATE PHYSICS; ISSN 0022-3719; GBR; DA. 1982; VOL. 15; NO 31; PP. L1103-L1107; BIBL. 14 REF.Article

THE THEORETICAL AND EXPERIMENTAL SPECIFIC HEAT OF THE ONE DIMENSIONAL COMPOUNDS TMMC AND TMCC. = CHALEUR SPECIFIQUE THEORIQUE ET EXPERIMENTALE DES COMPOSES UNIDIMENSIONNELS: TETRAMETHYL-AMMONIUM-MANGANESE TRICHLORURE AND CADMIUM TRICHLORURESWUSTE CHW; DEJONGE WJM KOPINGA K; TAKEDA K et al.1975; IN: LOW TEMP. PHYS. - LT 14. INT. CONF. LOW TEMP. PHYS. 14. PROC.; OTANIEMI; 1975; AMSTERDAM; NORTH HOLLAND; DA. 1975; VOL. 4; PP. 362-365; BIBL. 4 REF.Conference Paper

MAGNETIC SPECIFIC HEAT OF THE NEARLY-ONE-DIMENSIONAL SYSTEM TETRAMETHYL AMMONIUM NICKEL TRICHLORIDE (TMNC).KOPINGA K; DE NEEF T; DE JONGE WJM et al.1976; PHYS. REV., B; U.S.A.; DA. 1976; VOL. 13; NO 9; PP. 3953-3955; BIBL. 17 REF.Article

IMPURITIES IN QUASI-ONE-DIMENSIONAL HEISENBERG SYSTEMS: THE EFFECT OF ANISOTROPYSCHOUTEN JC; BOERSMA F; KOPINGA K et al.1980; PHYS. REV. B; ISSN 0163-1829; USA; DA. 1980; VOL. 21; NO 9; PP. 4084-4089; BIBL. 25 REF.Article

QUASI ONE-DIMENSIONAL MAGNETIC BEHAVIOR OF (C₅H₅NH) MNCL₃(PMCA) AND (C₅H₅NH) NICL₃(PNCA)SCHOUTEN JC; HADDERS H; KOPINGA K et al.1980; SOLID STATE COMMUN.; ISSN 0038-1098; USA; DA. 1980; VOL. 34; NO 8; PP. 667-670; BIBL. 13 REF.Article

PHASE DIAGRAMS OF PSEUDO ONE-DIMENSIONAL HEISENBERG SYSTEMS.HIJMANS JPAM; KOPINGA K; BOERSMA F et al.1978; PHYS. REV. LETTERS; U.S.A.; DA. 1978; VOL. 40; NO 16; PP. 1108-1111; BIBL. 19 REF.Article

Temperature dependence of F-, D- and z-values used in steam sterilization processesVAN DOORNMALEN, J. P. C. M; KOPINGA, K.Journal of applied microbiology (Print). 2009, Vol 107, Num 3, pp 1054-1060, issn 1364-5072, 7 p.Article

Quasi-one-dimensional magnetic behaviour of the Ising system CsFeCl₃•2aqKOPINGA, K; STEINER, M; DE JONGE, W. J. M et al.Journal of physics. C. Solid state physics. 1985, Vol 18, Num 18, pp 3511-3520, issn 0022-3719Article

Static properties of ferromagnetic quantum chains : numerical results and experimental data on two S=1/2 systems (invited)KOPINGA, K; DELICA, T; LESCHKE, H et al.Journal of applied physics. 1990, Vol 67, Num 9, pp 5599-5603, issn 0021-8979, 5 p., BConference Paper

Static properties of an easy-plane ferromagnetic S=1/2 chain: comparison of numerical results and experimental data on [C₆H₁₁NH₃]CuBr₃KOPINGA, K; DELICA, T; LESCHKE, H et al.Physical review. B, Condensed matter. 1989, Vol 40, Num 10, pp 7239-7246, issn 0163-1829, 8 p.Article