@article{10_4064_sm206_2_5,
     author = {Dongyang Chen and William B. Johnson and Bentuo Zheng},
     title = {Commutators on $(\sum \ell_q)_p$},
     journal = {Studia Mathematica},
     pages = {175--190},
     publisher = {mathdoc},
     volume = {206},
     number = {2},
     year = {2011},
     doi = {10.4064/sm206-2-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm206-2-5/}
}