Relativistic cosmology

[11] The relation between the expansion and the mean density of the universe [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1932, 18 : 213 - 214

[12] EINSTEIN A, 1931, PREUSSISCHE AKAD WIS, P235

[13] EINSTEIN A, 1917, AKAD WISS, P142

[14] On the curvature of space [J]. ZEITSCHRIFT FUR PHYSIK, 1922, 10 : 377 - 386

[15] On the possibility of a world with constantly negative curvature of space [J]. ZEITSCHRIFT FUR PHYSIK, 1924, 21 : 326 - 332

[16] Heckmann O., 1931, NACHR GES WISS GOTTE, V127

[17] Heckmann O., 1932, NACHR GES WISS GOTT, P97

[18] The velocity-distance relation among extra-galactic nebulae [J]. ASTROPHYSICAL JOURNAL, 1931, 74 (01) : 43 - 80

[19] Hubble E. P., 1927, P NAT ACAD SCI, V15, P168

[20] HUBBLE EP, 1931, EXPLORATION SPACE

[11] The relation between the expansion and the mean density of the universe [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1932, 18 : 213 - 214

[12] EINSTEIN A, 1931, PREUSSISCHE AKAD WIS, P235

[13] EINSTEIN A, 1917, AKAD WISS, P142

[14] On the curvature of space [J]. ZEITSCHRIFT FUR PHYSIK, 1922, 10 : 377 - 386

[15] On the possibility of a world with constantly negative curvature of space [J]. ZEITSCHRIFT FUR PHYSIK, 1924, 21 : 326 - 332

[16] Heckmann O., 1931, NACHR GES WISS GOTTE, V127

[17] Heckmann O., 1932, NACHR GES WISS GOTT, P97

[18] The velocity-distance relation among extra-galactic nebulae [J]. ASTROPHYSICAL JOURNAL, 1931, 74 (01) : 43 - 80

[19] Hubble E. P., 1927, P NAT ACAD SCI, V15, P168

[20] HUBBLE EP, 1931, EXPLORATION SPACE