@article{HHA_2017_19_2_a15,
     author = {Peter Franek and Marek Kr\v{c}\'al},
     title = {Persistence of zero sets},
     journal = {Homology, homotopy, and applications},
     pages = {313--342},
     publisher = {mathdoc},
     volume = {19},
     number = {2},
     year = {2017},
     doi = {10.4310/HHA.2017.v19.n2.a16},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4310/HHA.2017.v19.n2.a16/}
}