@article{10_4153_S0008439524000754,
     author = {Wang, Penghui and Zhu, Zeyou},
     title = {Fredholm index of {Toeplitz} pairs with $H^{\infty }$ symbols},
     journal = {Canadian mathematical bulletin},
     pages = {166--176},
     year = {2025},
     volume = {68},
     number = {1},
     doi = {10.4153/S0008439524000754},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/S0008439524000754/}
}