@article{Kodiyalam_Sunder_2000, title={The subgroup-subfactor}, volume={86}, url={https://www.mscand.dk/article/view/14281}, DOI={10.7146/math.scand.a-14281}, number={1}, journal={MATHEMATICA SCANDINAVICA}, author={Kodiyalam, Vijay and Sunder, V. S.}, year={2000}, month={Mar.}, pages={45–74} }