TY - BOOK AU - Elmunim,N.A. AU - Abdullah,M. TI - Ionospheric delay investigation and forecasting T2 - SpringerBriefs in applied sciences and technology, SN - 9789811650444 PY - 2021/// KW - Ionospheric forecasting KW - Ionospheric radio wave absorption KW - Global Positioning System N1 - Includes bibliographical references ER -