@article{IM_1980__57_142708,
     author = {Tzee-Char Kuo and Yung-Chen Lu},
     title = {Sufficiency of {Jets} via {Stratification} {Theory.}},
     journal = {Inventiones mathematicae},
     pages = {219--226},
     publisher = {mathdoc},
     volume = {57},
     year = {1980},
     zbl = {0438.58010},
     url = {http://geodesic.mathdoc.fr/item/IM_1980__57_142708/}
}