共 46 条
[4]
Alharbi Y. F., 2023, AIMS MATH, V8, P4126, DOI [10.3934/math.2023205, DOI 10.3934/MATH.2023205]
[5]
Baksalary J. K., 1979, Mathematische Operationsforschung und Statistik, Series Statistics, V10, P27, DOI 10.1080/02331887908801464
[9]
Drygas H., 1970, COORDINATE FREE APPR