@article{RSMUP_2016__135__1_0,
     author = {Dai, Li and Dong, Jingcheng},
     title = {On {Kaplansky{\textquoteright}s} sixth conjecture},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {1--20},
     publisher = {European Mathematical Society Publishing House},
     address = {Zuerich, Switzerland},
     volume = {135},
     year = {2016},
     doi = {10.4171/RSMUP/135-1},
     url = {http://archive.numdam.org/articles/10.4171/RSMUP/135-1/}
}