@article{IM_1981__65_142838,
     author = {Tatsuo Suwa},
     title = {A {Theorem} of {Versality} for {Unfoldings} of {Complex} {Analytic} {Foliation} {Singularities.}},
     journal = {Inventiones mathematicae},
     pages = {29--48},
     publisher = {mathdoc},
     volume = {65},
     year = {1981},
     zbl = {0487.32016},
     url = {http://geodesic.mathdoc.fr/item/IM_1981__65_142838/}
}