@article{201612.0018,
	doi = {10.20944/preprints201612.0018.v1},
	url = {https://doi.org/10.20944/preprints201612.0018.v1},
	year = 2016,
	month = {December},
	publisher = {Preprints},
	author = {Ling Huang and Hongping Zhang and Peiliang Xu and Jianghui Geng and Cheng Wang and Jingnan Liu},
	title = {<strong>Kriging with Unknown Variance Components for Regional Ionospheric Reconstruction</strong>},
	journal = {Preprints}
}