@article{10_4064_cm_25_1_73_78,
     author = {Togo Nishiura},
     title = {Inductive invariants of closed extensions of mappings},
     journal = {Colloquium Mathematicum},
     pages = {73--78},
     publisher = {mathdoc},
     volume = {25},
     number = {1},
     year = {1972},
     doi = {10.4064/cm-25-1-73-78},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-25-1-73-78/}
}