Sasanka Roy, Sandip Das, Subhas C. Nandy. Shortest monotone descent path problem in polyhedral terrain. Comput. Geom., 37(2):115-133, 2007. [doi]
@article{RoyDN07, title = {Shortest monotone descent path problem in polyhedral terrain}, author = {Sasanka Roy and Sandip Das and Subhas C. Nandy}, year = {2007}, doi = {10.1016/j.comgeo.2006.06.003}, url = {http://dx.doi.org/10.1016/j.comgeo.2006.06.003}, tags = {C++}, researchr = {https://researchr.org/publication/RoyDN07}, cites = {0}, citedby = {0}, journal = {Comput. Geom.}, volume = {37}, number = {2}, pages = {115-133}, }