no. 1
Classification of 𝔻-modules with regular singularities along normal crossings
Compositio Mathematica, Tome 60 (1986) no. 1, pp. 19-32. 
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     author = {Van Doorn, M. G. M.},
     title = {Classification of $\mathbb {D}$-modules with regular singularities along normal crossings},
     journal = {Compositio Mathematica},
     pages = {19--32},
     publisher = {Martinus Nijhoff Publishers},
     volume = {60},
     number = {1},
     year = {1986},
     mrnumber = {867953},
     zbl = {0626.32015},
     language = {en},
     url = {http://www.numdam.org/item/CM_1986__60_1_19_0/}
}
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Van Doorn, M. G. M. Classification of $\mathbb {D}$-modules with regular singularities along normal crossings. Compositio Mathematica, Tome 60 (1986) no. 1, pp. 19-32. http://www.numdam.org/item/CM_1986__60_1_19_0/

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