Upravlenie v prostranstve. Trudy IV Mezhdunar. simpoziuma IFAK po avtomat. upravlenii︠u︡ v prostranstve. (V 2-kh t.) I︠U︡goslavii︠a︡, g. Dubrovnik, sent. 1971 g.
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IFAC Symposium on Automatic Control in Space (4th : 1971 : Dubrovnik, Yugoslavia)
Pulkovskiĭ obzor neba v radiolinii mezhzvezdnogo neĭtralʹnogo vodoroda, III : nabli︠u︡denii︠a︡ v zone [the mathematical expression, delta is greater than or equal to -29 ̊but less than or equal to +40]̊ ...