kw.\*:("SYSTEME FK 4")
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PRECISE OPTICAL POSITIONS OF RADIO SOURCES IN THE FK H-SYSTEM. RESULTS FROM A PILOT PROGRAM.DE VEGT C; GEHLICH UK.1978; ASTR. AND ASTROPHYS.; DEU; DA. 1978; VOL. 67; NO 1; PP. 65-71; BIBL. 28 REF.Article
AN ATTEMPT TO COMPARE THE RADIO ASTRONOMICAL SYSTEM OF COORDINATES OF QUASARS WITH FK 4KUMKOVA II.1981; ASTROPHYS. SPACE SCI. LIBR.; ISSN 0067-0057; NLD; DA. 1981; VOL. 86; PP. 369-373; BIBL. 11 REF.Conference Paper