TY - BOOK AU - Blundell,Craig A. ED - Australia. ED - IPS Radio and Space Services. TI - The applicability of cubic splines to the IPS automatic scaling system T2 - Technical report / IPS Radio and Space services, ISSN 0812-7395 SN - 0812-7395 PY - 1988/// CY - Darlinghurst, N.S.W. PB - IPS Radio and Space Services KW - Ionosphere KW - Ionospheric critical frequencies ER -