@article{MTA_2020_5_1_a3,
     author = {Lejia Gu and Liqun Qi},
     title = {Basic positive semi-definite {Hankel} tensors},
     journal = {Minimax theory and its applications},
     year = {2020},
     volume = {5},
     number = {1},
     zbl = {1437.15033},
     url = {http://geodesic.mathdoc.fr/item/MTA_2020_5_1_a3/}
}