@article{10_4064_ap_40_2_179_184,
     author = {P. Kasprowski},
     title = {On the existence of invariant measures for piecewise convex transformations},
     journal = {Annales Polonici Mathematici},
     pages = {179--184},
     publisher = {mathdoc},
     volume = {40},
     number = {2},
     year = {1981},
     doi = {10.4064/ap-40-2-179-184},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-40-2-179-184/}
}