@article{10_4064_sm_28_1_1_8,
     author = {J. Mikusi\'nski},
     title = {Convolution approximation and shift approximation},
     journal = {Studia Mathematica},
     pages = {1--8},
     publisher = {mathdoc},
     volume = {28},
     number = {1},
     year = {1966},
     doi = {10.4064/sm-28-1-1-8},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-28-1-1-8/}
}