@article{RSMUP_2014__131__1_0,
     author = {Antonini, Paolo},
     title = {Boundary integral for the {Ramachandran} index},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {1--14},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {131},
     year = {2014},
     mrnumber = {3217747},
     zbl = {06329754},
     language = {en},
     url = {http://archive.numdam.org/item/RSMUP_2014__131__1_0/}
}