@article{RSMUP_2002__107__191_0,
     author = {Li\c{t}canu, R\u{a}zvan},
     title = {Counting {Lam\'e} differential operators},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {191--208},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {107},
     year = {2002},
     mrnumber = {1926211},
     zbl = {1165.34431},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_2002__107__191_0/}
}