@article{RSMUP_2007__118__235_0,
     author = {Lempken, Wolfgang and Parker, Christopher and Rowley, Peter},
     title = {$(S_3,S_6)${-Amalgams} {VI}},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {235--256},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {118},
     year = {2007},
     mrnumber = {2378398},
     zbl = {1170.20305},
     language = {en},
     url = {http://archive.numdam.org/item/RSMUP_2007__118__235_0/}
}