• [1] Henri Cartan and Samuel Eilenberg, Homological algebra, Princeton University Press, Princeton, N. J., 1956. MR 0077480 (17,1040e)
• [2] Leonard Evens, A generalization of the transfer map in the cohomology of groups, Trans. Amer. Math. Soc. 108 (1963), 54–65. MR 0153725 (27 #3686), http://dx.doi.org/10.1090/S0002-9947-1963-0153725-1
• [3] N. E. Steenrod, Cohomology operations, Lectures by N. E. STeenrod written and revised by D. B. A. Epstein. Annals of Mathematics Studies, No. 50, Princeton University Press, Princeton, N.J., 1962. MR 0145525 (26 #3056)

Bibliography

[1]

H. Cartan and S. Eilenberg, Homological algebra, Princeton Univ. Press, Princeton, N. J., 1956. MR 0077480 (17:1040e)

[2]

L. Evens, A generalization of the transfer map in the cohomology of groups, Trans. Amer. Math. Soc. 108 (1963), 54-65. MR 0153725 (27:3686)

[3]

N. Steenrod, Cohomology operations, revised by D. B. A. Epstein, Annals of Mathematics Studies, No. 50, Princeton Univ. Press, Princeton, N. J., 1962. MR 0145525 (26:3056)