@article{10_2298_FIL2211709L,
     author = {Xifu Liu},
     title = {Positive semidefinite solution to matrix completion problem and matrix approximation problem},
     journal = {Filomat},
     pages = {3709 },
     year = {2022},
     volume = {36},
     number = {11},
     doi = {10.2298/FIL2211709L},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/FIL2211709L/}
}