DETERMINATION OF THE POSITION OF GX2+5 WITH COPERNICUSHAWKINS FJ; MASON KO; SANFORD PW et al.1973; NATURE PHYS. SCI.; G.B.; DA. 1973; VOL. 241; NO 110; PP. 109-111; BIBL. 1 REF.Serial Issue

DETECTION OF SOFT X-RAY EMISSION FROM PSR 0833-45.CULHANE JL; CRUISE AM; RAPLEY CG et al.1974; ASTROPHYS. J.; U.S.A.; DA. 1974; VOL. 190; NO 1 PART. 2; PP. 9-12; BIBL. 15 REF.Article

X-RAY ABSORPTION EVENTS IN CYGNUS X-1 OBSERVED WITH COPERNICUS.MASON KO; HAWKINS FJ; SANFORD PW et al.1974; ASTROPHYS. J.; U.S.A.; DA. 1974; VOL. 192; NO 2 PART. 2; PP. L65-L69; BIBL. 12 REF.Article

COPERNICUS OBSERVATIONS OF VARIATIONS IN THE X-RAY FLUX FROM CYGNUS X-1.SANFORD PW; MASON KO; HAWKINS FJ et al.1974; ASTROPHYS. J.; U.S.A.; DA. 1974; VOL. 190; NO 2 PART. 2; PP. 55-58; BIBL. 17 REF.Article

X-RAY ASTRONOMY WITH COPERNICUS.PARKINSON JH; CULHANE JL; HAWKINS FJ et al.1975; SPACE RES.; NETHERL.; DA. 1975; VOL. 15; PP. 663-679; BIBL. 29 REF.; (PLENARY MEET. COSPAR. 7. PROC. OPEN MEET. WORK. GROUPS PHYS. SCI.; SAO PAULO, S.P.; 1974)Conference Paper

THE INTERSTELLAR MEDIUM IN THE LINE OF SIGHT TO X PERSEI AND 3U 0352 + 30.MASON KO; WHITE NE; SANFORD PW et al.1976; MONTH. NOT. R. ASTR. SOC.; G.B.; DA. 1976; VOL. 176; NO 1; PP. 193-199; BIBL. 27 REF.Article