Chain transformations in Mayer chain complexes
Compositio Mathematica, Tome 8 (1951), pp. 251-284 
@article{CM_1951__8__251_0,
     author = {Hu, Sze-Tsen},
     title = {Chain transformations in {Mayer} chain complexes},
     journal = {Compositio Mathematica},
     pages = {251--284},
     year = {1951},
     publisher = {Kraus Reprint},
     volume = {8},
     mrnumber = {39998},
     zbl = {0042.17001},
     language = {en},
     url = {https://www.numdam.org/item/CM_1951__8__251_0/}
}
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%T Chain transformations in Mayer chain complexes
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Hu, Sze-Tsen. Chain transformations in Mayer chain complexes. Compositio Mathematica, Tome 8 (1951), pp. 251-284. https://www.numdam.org/item/CM_1951__8__251_0/

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