@article{10_4064_cm_22_2_291_299,
     author = {N. C. Manna},
     title = {On a generalization of smooth and symmetric functions},
     journal = {Colloquium Mathematicum},
     pages = {291--299},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {1970},
     doi = {10.4064/cm-22-2-291-299},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-22-2-291-299/}
}