@article{VMUMM_1985_1_a1,
     author = {A. N. Varchenko and S. V. Chmutov},
     title = {On the tangent cone to the stratum $\mu=\operatorname{const}$},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {6--9},
     publisher = {mathdoc},
     number = {1},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1985_1_a1/}
}