Moroz, V., & Schaftingen, J. V. (2015). Existence of groundstates for a class of nonlinear Choquard equations. Transactions of the American Mathematical Society, 367(9), pp. 6557-6579. doi:10.1090/S0002-9947-2014-06289-2

Moroz, Vitaly, and Jean Van Schaftingen. "Existence of Groundstates for a Class of Nonlinear Choquard Equations." Transactions of the American Mathematical Society 367, no. 9 (2015): 6557-6579.

Moroz, Vitaly, and Jean Van Schaftingen. "Existence of Groundstates for a Class of Nonlinear Choquard Equations." Transactions of the American Mathematical Society 367.9 (2015): 6557-6579.