@article{10_14708_wm_v29i01_4442,
     author = {K. G\k{e}ba},
     title = {Recenzja: {K.} {P.} {Rybakowski,} {The} {Homotopy} {Index} and {Partial} {Differential} {Equations}},
     journal = {Wiadomo\'sci Matematyczne},
     pages = { 173--174},
     publisher = {mathdoc},
     volume = {29},
     number = {01},
     year = {1990},
     doi = {10.14708/wm.v29i01.4442},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v29i01.4442/}
}