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ETUDE DE L'ABSORPTION OH DANS LA NEBULEUSE TRIFIDE (M20)SLYSH VI.1975; PIS'MA ASTR. ZH.; S.S.S.R.; DA. 1975; VOL. 1; NO 8; PP. 12-15; BIBL. 3 REF.Article

DUST CLOUDS OF SAGITTARIUSMALIN DF.1982; SKY & TELESC.; ISSN 0037-6604; USA; DA. 1982; VOL. 63; NO 3; PP. 254-259Article

A CLASSIFICATION OF THE AVAILABLE ASTROPHYSICAL DATA OF PARTICULAR HII REGIONS. V: M8 AND M20: MAPPING AND PHYSICAL PARAMETERS OF THE OBJECTS.GOUDIS C.1976; ASTROPHYS. SPACE SCI.; NETHERL.; DA. 1976; VOL. 40; NO 2; PP. 281-314; BIBL. 1 P. 1/2Article

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The structure of the faint nebulosity and obscuration toward M8, M20, and W28HARTL, H; MALIN, D. F; MACGILLIVRAY, H. T et al.Astrophysical Letters. 1983, Vol 23, Num 4, pp 193-205, issn 0004-6388Article

THE INTERSTELLAR EXTINCTION LAW IN SOME DUSTY HII REGIONSNECKEL T; CHINI R.1981; ASTRON. ASTROPHYS., SUPPL. SER.; ISSN 0365-0138; DEU; DA. 1981; VOL. 45; NO 3; PP. 451-454; BIBL. 19 REF.Article

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