01612oam 2200421I 450 991070514430332120140304151825.0(CKB)5470000002447914(OCoLC)741470481(EXLCZ)99547000000244791420110717d1959 ua 0engurmn|||||||||rdacontentrdamediardacarrierLow- and very low-radiofrequency tables of ground wave parameters for the spherical earth theory the roots of Riccati's differential equation /J.R. Johler, L.C. Walters, C.M. LilleyWashington, D.C. :National Bureau of Standards, United States Department of Commerce, Office of Technical Services,[1959?]1 online resource (86 pages)National Bureau of Standards technical note ;no. 7Title from title screen (viewed Mar. 4, 2014).Low- and very low-radiofrequency tables of ground wave parameters for the spherical earth theory Radio wave propagationRiccati equationRadio wave propagation.Riccati equation.Johler J. Ralph1401488Walters L. C.Lilley C. M.United States.National Bureau of Standards,OCLCEOCLCEOCLCQGPOBOOK9910705144303321Low- and very low-radiofrequency tables of ground wave parameters for the spherical earth theory3522537UNINA