@article{SEMR_2020_17_a3,
     author = {V. A. Roman'kov},
     title = {Primitive elements and automorphisms of the free metabelian group of rank $3$},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {61--76},
     publisher = {mathdoc},
     volume = {17},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2020_17_a3/}
}