@article {IOPORT.50312908,
    author       = {Alonso-Mallo, Isa{\'\i}as and Reguera, Nuria},
    title        = {Discrete absorbing boundary conditions for schr\"oinger-type equations. Practical implementation},
    year         = {2004},
    journal      = {Math. Comput.},
    volume       = {73},
    number       = {245},
    pages        = {127-142},
    doi          = {10.1090/S0025-5718-03-01548-5},
    identifier   = {50312908},
}