A New Method for Computing the Drainage Network Based on Raising the Level of an Ocean Surrounding the Terrain. - Salles V. G. Magalhães; Marcus V. A. Andrade; W. Randolph Franklin; Guilherme C. Pena (AGILE Conf., 2012)

Computing the drainage network on huge grid terrains. - Thiago L. Gomes; Salles V. G. Magalhães; Marcus V. A. Andrade; W. Randolph Franklin; Guilherme C. Pena (BigSpatial@SIGSPATIAL, 2012)

A Parallel Sweep Line Algorithm for Visibility Computation. - Cháulio Ferreira; Marcus V. A. Andrade; Salles V. G. Magalhães; W. Randolph Franklin; Guilherme C. Pena (GEOINFO, 2013)

An efficient GPU multiple-observer siting method based on sparse-matrix multiplication. - Guilherme C. Pena; Salles V. G. Magalhães; Marcus Vinícius Alvim Andrade; W. Randolph Franklin; Cháulio R. Ferreira; Wenli Li (BigSpatial@SIGSPATIAL, 2014)

An Improved Parallel Algorithm Using GPU for Siting Observers on Terrain. - Guilherme C. Pena; Marcus V. A. Andrade; Salles V. G. Magalhães; W. Randolph Franklin; Cháulio R. Ferreira (ICEIS (1), 2014)

A Parallel Algorithm for Viewshed Computation on Grid Terrains. - Cháulio R. Ferreira; Marcus Vinícius Alvim Andrade; Salles V. G. Magalhães; W. Randolph Franklin; Guilherme C. Pena (J. Inf. Data Manag., 2014)

Efficiently computing the drainage network on massive terrains using external memory flooding process. - Thiago L. Gomes; Salles V. G. Magalhães; Marcus V. A. Andrade; W. Randolph Franklin; Guilherme C. Pena (GeoInformatica, 2015)

Models and Methods for the Integrated Scheduling Routing Problem Applied to Major Disasters. (Modèles et méthodes pour le problème intégré de planification et tournées appliqué aux catastrophes majeures). - Guilherme C. Pena (2021)

Solving the integrated multi-period scheduling routing problem for cleaning debris in the aftermath of disasters. - Guilherme C. Pena; Andréa Cynthia Santos; Christian Prins (Eur. J. Oper. Res., 2023)