THE (N + 2)ND HOMOTOPY GROUP OF THE N-SPHERE

[1] FREUDENTHAL H, 1937, COMPOS MATH, V5, P299

[2] Homotopy relations in fibre spaces [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1941, 27 : 60 - 64

[3] PONTRJAGIN, 1950, CR ACAD SCI URSS, V70, P957

[4] 1950, ANN MATH, V51, P192

[5] 1938, C R ACAD SCI URSS, V19, P361

[6] 1949, P NAT ACAD SCI US, V35, P322

[7] 1938, C R ACAD SCI URSS, V19, P147

[1] FREUDENTHAL H, 1937, COMPOS MATH, V5, P299

[2] Homotopy relations in fibre spaces [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1941, 27 : 60 - 64

[3] PONTRJAGIN, 1950, CR ACAD SCI URSS, V70, P957

[4] 1950, ANN MATH, V51, P192

[5] 1938, C R ACAD SCI URSS, V19, P361

[6] 1949, P NAT ACAD SCI US, V35, P322

[7] 1938, C R ACAD SCI URSS, V19, P147