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A MODEL FOR CYGNUS X-1.DE FREITAS PACHECO JA; STEINER JE.sdIN: INT. COSMIC RAY CONF. 14; MUENCHEN; 1975; MUENCHEN; MAX PLANCK INST.; DA. S.D.; VOL. 1; PP. 144-147; BIBL. 3 REF.Conference Paper

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ASTRONOMICAL OBSERVATIONS WITH THE OPTICAL MULTICHANNEL ANALYSER OF THE SAO PAULO UNIVERSITYCODINA LANDABERRY SJ; DE FREITAS PACHECO JA.1979; REV. BRAS. FIS.; BRA; DA. 1979; VOL. 9; NO 1; PP. 45-77; ABS. POR; BIBL. 21 REF.Article

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POSSIBLE PERIODIC VARIATIONS IN THE SECONDARY MINIMUM OF HD153919=-2U1700-37.DE FREITAS PACHECO JA; STEINER JE; QUAST GR et al.1974; ASTR. AND ASTROPHYS.; GERM.; DA. 1974; VOL. 33; NO 1; PP. 131-133; BIBL. 9 REF.Article