@article{MZ_1992__211_3_174464,
     author = {Lop-Hing Ho},
     title = {Exact subelliptic estimates for n - 1 forms.},
     journal = {Mathematische Zeitschrift},
     pages = {635--642},
     publisher = {mathdoc},
     volume = {211},
     number = {3},
     year = {1992},
     zbl = {0760.35031},
     url = {http://geodesic.mathdoc.fr/item/MZ_1992__211_3_174464/}
}