@article{RSMUP_1999__101__99_0,
     author = {Rossetti, J. P. and Tirao, P. A.},
     title = {Compact flat manifolds with holonomy group $\mathbf {Z}_2 \bigoplus \mathbf {Z}_2$ {(II)}},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {99--136},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {101},
     year = {1999},
     zbl = {0970.53029},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1999__101__99_0/}
}