@incollection{Isioye19, author = {Olalekan Adekunle Isioye and Mefe Moses and Lukman Abdulmumin}, title = {Comparative Study of Some Online GNSS Post-Processing Services at Selected Permanent GNSS Sites in Nigeria}, booktitle = {Accuracy of GNSS Methods}, publisher = {IntechOpen}, address = {Rijeka}, year = {2019}, editor = {Dogan Ugur Sanli}, chapter = {6}, doi = {10.5772/intechopen.79924}, url = {https://doi.org/10.5772/intechopen.79924} }