Invariants of BT[p,q], BT(X)[p,q] and BT(Y)[p,q]
Mathematical Methods in the Applied Sciences (2020) - Comments
doi: 10.1002/mma.6897  issn: 0170-4214  issn: 1099-1476 

Yu‐Jie Huang, Abaid Ur Rehman Virk, Yu‐Ming Chu