Successive homology operations and their applications
Cahiers de topologie et géométrie différentielle, Tome 8 (1966), Exposé no. 2, 5 p. 
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     author = {Chang, Su-Cheng},
     title = {Successive homology operations and their applications},
     journal = {Cahiers de topologie et g\'eom\'etrie diff\'erentielle},
     note = {talk:2},
     pages = {1--5},
     publisher = {CNRS},
     volume = {8},
     year = {1966},
     mrnumber = {205249},
     zbl = {0199.57802},
     language = {en},
     url = {http://www.numdam.org/item/CTGDC_1966__8__A2_0/}
}
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Chang, Su-Cheng. Successive homology operations and their applications. Cahiers de topologie et géométrie différentielle, Tome 8 (1966), Exposé no. 2, 5 p. http://www.numdam.org/item/CTGDC_1966__8__A2_0/

[1] Massey, W.S., Annals of Math, 56 (1952), 363 - 396. | MR | Zbl

[2] Chang, S.C., Acta Math. Sinica, 13 (1963), 231- 237. | Zbl