@incollection{Dwivedi19, author = {Klaus Wilhelm and Bhola N. Dwivedi}, title = {Impact Models of Gravitational and Electrostatic Forces}, booktitle = {Planetology}, publisher = {IntechOpen}, address = {Rijeka}, year = {2019}, editor = {Bryan Palaszewski}, chapter = {5}, doi = {10.5772/intechopen.86744}, url = {https://doi.org/10.5772/intechopen.86744} }