@article{BASM_2020_1_a7,
     author = {Parascovia Syrbu and Ion Grecu},
     title = {Loops with invariant flexibility under the isostrophy},
     journal = {Buletinul Academiei de \c{S}tiin\c{t}e a Republicii Moldova. Matematica},
     pages = {122--128},
     publisher = {mathdoc},
     number = {1},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BASM_2020_1_a7/}
}