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[32] MAUDER H, 1969, ASTRON ASTROPHYS, V1, P147

[33] MOFFAT AFJ, 1974, ASTRON ASTROPHYS, V30, P381

[34] NAQVI SIH, 1976, ASTRON ASTROPHYS, V47, P318

[35] Ollongren A., 1962, B ASTRON I NETH, V16, P241

[36] COMPOSITION AND EVOLUTIONARY STATUS OF HELIUM-RICH STARS [J]. ASTROPHYSICAL JOURNAL, 1974, 187 (01) : 117 - 129

[37] PACHECO IAF, 1977, IAU1306 VAR STARS IN

[38] REDISCUSSION OF ECLIPSING BINARIES .10. B-STARS AG PERSEI AND CW CASSIOPEIAE [J]. ASTROPHYSICAL JOURNAL, 1974, 188 (03) : 559 - 565

[39] RACINE R, 1968, AJ, V73, P223

[40] ROMAN NG, 1956, ASTROPHYS J, V129, P246

[31] ECLIPSING SYSTEMS IN STAR CLUSTERS .3. EARLY-TYPE CONTACT SYSTEM BH-CENTAURI [J]. ASTROPHYSICAL JOURNAL, 1977, 211 (03) : 844 - 852

[32] MAUDER H, 1969, ASTRON ASTROPHYS, V1, P147

[33] MOFFAT AFJ, 1974, ASTRON ASTROPHYS, V30, P381

[34] NAQVI SIH, 1976, ASTRON ASTROPHYS, V47, P318

[35] Ollongren A., 1962, B ASTRON I NETH, V16, P241

[36] COMPOSITION AND EVOLUTIONARY STATUS OF HELIUM-RICH STARS [J]. ASTROPHYSICAL JOURNAL, 1974, 187 (01) : 117 - 129

[37] PACHECO IAF, 1977, IAU1306 VAR STARS IN

[38] REDISCUSSION OF ECLIPSING BINARIES .10. B-STARS AG PERSEI AND CW CASSIOPEIAE [J]. ASTROPHYSICAL JOURNAL, 1974, 188 (03) : 559 - 565

[39] RACINE R, 1968, AJ, V73, P223

[40] ROMAN NG, 1956, ASTROPHYS J, V129, P246