@article{Barbier:5048,
      author        = "Orbellis, Nicolaus de and Barbier, Jean and Petit, Jean",
      title         = "{Eximii doctoris magistri Nicholai de orbellis sup[er]
                       s□et□etias c□opendi□u ...: doctoris subtilis dicta
                       s□umatim c□oplect□es... : recognit□u ac nouae
                       impressioni Parisii commendatum}",
}