wichita.edu
…for second-order vector random fields in space and time. IEEE Transactions on Signal Processing, 59 (2011), 2160-2168. Ma, C., Covariance matrix functions of vector chi-square random fields in space and time. IEEE Transactions on communications, 59 (2011), 2554-2561. Ma, C., A class of variogram matrices for vector random fields in space and/or time, …
https://www.wichita.edu/academics/fairmount_las/mathematics/mathstat/people/cma.php