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A DIGITAL ANALYSIS OF THE POLARIZATION WITHIN THE SERPENS NEBULA.WORDEN SP; GRASDALEN GL.1974; ASTR. AND ASTROPHYS.; GERM.; DA. 1974; VOL. 34; NO 1; PP. 37-40; BIBL. 14 REF.Article

THE DIPOLE NEBULA IC 2220, A SOUTHERN REFLECTION NEBULA AROUND THE VARIABLE RED GIANT HD 65750DACHS J; ISSERSTEDT J.1973; ASTR. AND ASTROPHYS.; GERM.; DA. 1973; VOL. 23; NO 2; PP. 241-245; BIBL. 20REF.Serial Issue

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LA DISTANCE DE R MON ET NGC 2261GRINSTEJN DL; DAZARYAN MA; MAGAKYAN T YU et al.1977; ASTR. CIRK. IZDAV. BJURO ASTR. SOOBSHCH. AKAD. NAUK S.S.S.R.; S.S.S.R.; DA. 1977; NO 947; PP. 1-3Article

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