Rabiu, U., Onimisi, A. and Achem, M. 2013. Using Locally Generated Magnetic Indices to Characterize the Ionosphere From Magnetic Data Acquisition System (Magdas) Ground Based Observatories in Nigeria. European Journal of Sustainable Development. 2, 2 (Jun. 2013), 177. DOI:https://doi.org/10.14207/ejsd.2013.v2n2p177.