THE AGES AND DIMENSIONS OF TRAPEZIUM SYSTEMS

[1] VISUAL MULTIPLES .3. ADS 11745 (BETA LYRAE GROUP) [J]. ASTRONOMICAL JOURNAL, 1976, 81 (08) : 659 - 660

[2] VISUAL MULTIPLE SYSTEM CONTAINING BETA LYRAE [J]. ASTROPHYSICAL JOURNAL, 1962, 135 (02) : 429 - &

[3] CONFIRMATION AMONG VISUAL MULTIPLES OF AN INCREASE OF AP STARS WITH AGE [J]. ASTROPHYSICAL JOURNAL, 1983, 272 (01) : 182 - 189

[4] VISUAL MULTIPLES .8. 1000 MK-TYPES [J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1985, 59 (01) : 95 - 112

[5] Allen C., 1977, Revista Mexicana de Astronomia y Astrofisica, V3, P119

[6] AMBARTSUMIAN VA, 1954, BYURAKAN AP OBS CONT, V15, P1

[7] [Anonymous], CARNEGIE I WASHINGTO

[8] [Anonymous], IAU S

[9] THE DISTRIBUTION OF STARS TO V=16TH MAGNITUDE NEAR THE NORTH GALACTIC POLE - NORMALIZATION, CLUSTERING PROPERTIES, AND COUNTS IN VARIOUS BANDS [J]. ASTROPHYSICAL JOURNAL, 1981, 246 (01) : 122 - 135

[10] BAIZE P, 1950, J OBS, V33, P129

[1] VISUAL MULTIPLES .3. ADS 11745 (BETA LYRAE GROUP) [J]. ASTRONOMICAL JOURNAL, 1976, 81 (08) : 659 - 660

[2] VISUAL MULTIPLE SYSTEM CONTAINING BETA LYRAE [J]. ASTROPHYSICAL JOURNAL, 1962, 135 (02) : 429 - &

[3] CONFIRMATION AMONG VISUAL MULTIPLES OF AN INCREASE OF AP STARS WITH AGE [J]. ASTROPHYSICAL JOURNAL, 1983, 272 (01) : 182 - 189

[4] VISUAL MULTIPLES .8. 1000 MK-TYPES [J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1985, 59 (01) : 95 - 112

[5] Allen C., 1977, Revista Mexicana de Astronomia y Astrofisica, V3, P119

[6] AMBARTSUMIAN VA, 1954, BYURAKAN AP OBS CONT, V15, P1

[7] [Anonymous], CARNEGIE I WASHINGTO

[8] [Anonymous], IAU S

[9] THE DISTRIBUTION OF STARS TO V=16TH MAGNITUDE NEAR THE NORTH GALACTIC POLE - NORMALIZATION, CLUSTERING PROPERTIES, AND COUNTS IN VARIOUS BANDS [J]. ASTROPHYSICAL JOURNAL, 1981, 246 (01) : 122 - 135

[10] BAIZE P, 1950, J OBS, V33, P129