@article{CM_1972__25_3_237_0,
     author = {Duistermaat, J. J.},
     title = {On first order elliptic equations for sections of complex line bundles},
     journal = {Compositio Mathematica},
     pages = {237--243},
     publisher = {Wolters-Noordhoff Publishing},
     volume = {25},
     number = {3},
     year = {1972},
     mrnumber = {367476},
     zbl = {0243.58003},
     language = {en},
     url = {http://www.numdam.org/item/CM_1972__25_3_237_0/}
}