@article{article3767d8c0,
title   = {Multiple orthogonal geodesic chords in nonconvex Riemannian disks using obstacles},
author = {Giambó, Roberto and Giannoni, Fábio and Piccione, Paolo},
year = {2018},
doi = {10.1007/s00526-018-1394-y},
journal   = {Calculus of Variations and Partial Differential Equations}
}