@article{HNP17,
 author = {Hofmann, M. and Nestler, F. and Pippig, M.},
 title = {{NFFT based Ewald summation for electrostatic systems with charges and dipoles}},
 journal = {Applied Numerical Mathematics},
 volume = {122},
 pages = {39--65},
 year = {2017},
 issn = {0168-9274},
 publisher = {Elsevier},
 doi = {10.1016/j.apnum.2017.07.008},
}