@article{10_21136_CMJ_1995_128556,
     author = {Eisner, Jan and Ku\v{c}era, Milan},
     title = {Hopf bifurcation and ordinary differential inequalities},
     journal = {Czechoslovak Mathematical Journal},
     pages = {577--608},
     publisher = {mathdoc},
     volume = {45},
     number = {4},
     year = {1995},
     doi = {10.21136/CMJ.1995.128556},
     mrnumber = {1354920},
     zbl = {0848.34020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1995.128556/}
}