@article{AUM_2012_66_2_a2,
     author = {Grzegorczyk, Wies{\l}aw and Medak, Beata and Tret{\textquoteright}yakov, Alexey A.},
     title = {Generalization of p-regularity notion and tangent cone description in the singular case},
     journal = {Annales Universitatis Mariae Curie-Sk{\l}odowska. Mathematica },
     publisher = {mathdoc},
     volume = {66},
     number = {2},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUM_2012_66_2_a2/}
}