TY - JOUR AU - G. F. Dell'Antonio AU - A. Michelangeli TI - From ``fat'' graphs to metric graphs: the problem of boundary conditions JO - Nanosistemy: fizika, himiâ, matematika PY - 2015 SP - 751 EP - 756 VL - 6 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NANO_2015_6_6_a1/ LA - en ID - NANO_2015_6_6_a1 ER -