@article{PDML_1971__8_1_13_0,
     author = {Fletcher, C. R.},
     title = {Equivalent {Conditions} for {Unique} {Factorization}},
     journal = {Publications du D\'epartement de math\'ematiques (Lyon)},
     pages = {13--22},
     publisher = {Universit\'e Claude Bernard - Lyon 1},
     volume = {8},
     number = {1},
     year = {1971},
     mrnumber = {327747},
     zbl = {0249.13006},
     language = {en},
     url = {http://www.numdam.org/item/PDML_1971__8_1_13_0/}
}