中国科学院数学与系统科学研究院期刊网
The Best Extending Cover-preserving Geometric Lattices of Semimodular Lattices
Peng HE, Xue Ping WANG
Acta Mathematica Sinica . 2023, (7): 1369 -1388 .  DOI: 10.1007/s10114-023-1531-1