@article{10_14708_ma_v14i28_1679,
     author = {Janusz Jarosz and Jerzy. Jaworski},
     title = {Time {Complexity} {Reduction} of {Hard} {Problems}},
     journal = {Mathematica Applicanda},
     pages = { 125--138},
     publisher = {mathdoc},
     volume = {14},
     number = {28},
     year = {1986},
     doi = {10.14708/ma.v14i28.1679},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/ma.v14i28.1679/}
}