@article{CLTM_1971_1971_1_a1,
     author = {Kamthan Kumar, Pawan},
     title = {The derivatives of a meromorphic function and {Nevanlinna's} deficient values.},
     journal = {Collectanea mathematica},
     pages = {5-17},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {1971},
     zbl = {0226.30030},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CLTM_1971_1971_1_a1/}
}