@article{10_14708_ma_v31i45_04_1910,
     author = {Z. Kotulski},
     title = {Construction of block ciphers: new possibilities},
     journal = {Mathematica Applicanda},
     pages = { 1--24},
     year = {2003},
     volume = {31},
     number = {45/04},
     doi = {10.14708/ma.v31i45/04.1910},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/ma.v31i45/04.1910/}
}