@article{10_21136_MB_2018_0041_17,
     author = {Fana{\"\i}, Hamid-Reza and Hasan-Zadeh, Atefeh},
     title = {An application of {Lie} groupoids to a rigidity problem of 2-step nilmanifolds},
     journal = {Mathematica Bohemica},
     pages = {149--160},
     publisher = {mathdoc},
     volume = {144},
     number = {2},
     year = {2019},
     doi = {10.21136/MB.2018.0041-17},
     mrnumber = {3974184},
     zbl = {07088842},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2018.0041-17/}
}