@article{MAN_1991__290_4_164841,
     author = {L\'aszl\'o Lempert and R\'obert Sz\"oke},
     title = {Global solutions of the homogeneous complex {Monge-Amp\`ere} equation and complex structures on the tangent bundle of {Riemannian} manifolds.},
     journal = {Mathematische Annalen},
     pages = {689--712},
     year = {1991},
     volume = {290},
     number = {4},
     zbl = {0752.32008},
     url = {http://geodesic.mathdoc.fr/item/MAN_1991__290_4_164841/}
}