@article{10_4064_am37_2_4,
     author = {Joanna P\k{e}tela},
     title = {Extinction in nonautonomous
 {Kolmogorov} systems},
     journal = {Applicationes Mathematicae},
     pages = {185--199},
     publisher = {mathdoc},
     volume = {37},
     number = {2},
     year = {2010},
     doi = {10.4064/am37-2-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am37-2-4/}
}