A DOUBLE CHAIN APPROXIMATION TO THE ISING MODELPLASCAK JA; SILVA NP.1982; PHYSICA STATUS SOLIDI. (B). BASIC RESEARCH; ISSN 0370-1972; DDR; DA. 1982; VOL. 110; NO 2; PP. 669-675; ABS. GER; BIBL. 13 REF.Article

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THERMODYNAMICS OF ORDER-DISORDER FERROELECTRIC MODELS OF SIX AND FOUR SITES WITH TUNNELINGDE AGUIAR FS; SILVA NP; CHAVES AS et al.1981; PHYS. REV. B; ISSN 0163-1829; USA; DA. 1981; VOL. 23; NO 3; PP. 1261-1265; BIBL. 4 REF.Article

ONE-DIMENSIONAL ISING FERROMAGNET WITH PHASE TRANSITIONSILVA NP; PIRES AST; FERREIRA JRF et al.1980; PHYS. STATUS SOLIDI (B), BASIC RES.; DDR; DA. 1980; VOL. 99; NO 1; PP. K23-K26; BIBL. 3 REF.Article

ATIVIDADE COMPARADA DA CEFOPERAZONA E CINCO CEFALOSPORINAS FRENTE A 628 AMOSTRAS DE ENTEROBACTERIAS, PSEUDOMONAS E STAPHYLOCOCCUS = ACTIVITE COMPARATIVE DE LA CEFOPERAZONE ET DE CINQ CEFALOSPORINES VIS-A-VIS DE 628 ECHANTILLONS D'ENTEROBACTERIES, P. ET S.TRABULSI LR; SILVA NP; MARQUES LRM et al.1982; REV. MICROBIOL.; ISSN 0001-3714; BRA; DA. 1982; VOL. 13; NO 3; PP. 297-300; BIBL. 6 REF.Article

A LINEAR CHAIN APPROXIMATION TO THE ISING MODEL WITH COMPETING INTERACTIONPIRES AST; SILVA NP; FRANCO BJO et al.1982; PHYSICA STATUS SOLIDI. (B). BASIC RESEARCH; ISSN 0370-1972; DDR; DA. 1982; VOL. 114; NO 1; PP. K63-K66; BIBL. 6 REF.Article

INFLUENCE OF TUNNELLING ON THE THERMODYNAMICS OF AN EIGHT-SITE ORDER-DISORDER FERROELECTRIC MODELSILVA NP; CHAVES AS; SA BARRETO FC et al.1979; PHYS. REV., B; USA; DA. 1979; VOL. 20; NO 3; PP. 1261-1272; BIBL. 16 REF.Article

CALCULATION OF THE OPTICAL TRANSITIONS FOR PBS, PBSE, PBTE, SNTE AND GETE USING A 3-PARAMETER MODEL POTENTIALFERREIRA LIMA CA; LABORNE E VALLE DE; DE SIQUEIRA ML et al.1972; REV. BRAS. FIS.; BRAS.; DA. 1972; VOL. 2; NO 2; PP. 67-75; ABS. PORT.; BIBL. 13 REF.Serial Issue