@book{13846,
	author = {Kos, Tomislav||Najman, Pavel},
	title = {Chapter Performance Analysis of Empirical Ionosphere Models by Comparison with CODE Vertical TEC Maps},
	url = {https://library.oapen.org/bitstream/20.500.12657/49121/1/47158.pdf||https://library.oapen.org/bitstream/20.500.12657/49121/1/47158.pdf}
}