@article{DOCMA_2017__22__a36,
     author = {El Kaoutit, Laiachi and Kowalzig, Niels},
     title = {Morita {Theory} for {Hopf} {Algebroids,} {Principal} {Bibundles,} and {Weak} {Equivalences}},
     journal = {Documenta mathematica},
     pages = {551--609},
     publisher = {mathdoc},
     volume = {22},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DOCMA_2017__22__a36/}
}