@article{10_4064_ap_19_1_115,
     author = {A. Schinzel and Y. Wang},
     title = {Corrigendum to {"A} note on some properties of the functions \ensuremath{\varphi}(n), \ensuremath{\sigma}(n) and \ensuremath{\theta}(n)'' by {A.} {Schinzel} and {Y.} {Wang} (these {Annales} 4 (1958))},
     journal = {Annales Polonici Mathematici},
     pages = {115--115},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {1967},
     doi = {10.4064/ap-19-1-115},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-19-1-115/}
}