Note on covering monotone orthogonal polygons with star-shaped polygons. - Andrzej Lingas; Agnieszka Wasylewicz; Pawel Zylinski (Inf. Process. Lett., 2007)

Linear-Time 3-Approximation Algorithm for the r -Star Covering Problem. - Andrzej Lingas; Agnieszka Wasylewicz; Pawel Zylinski (WALCOM, 2008)

Linear-Time 3-Approximation Algorithm for the R-Star Covering Problem. - Andrzej Lingas; Agnieszka Wasylewicz; Pawel Zylinski (Int. J. Comput. Geom. Appl., 2012)

Corrigendum to "Note on covering monotone orthogonal polygons" [Inf. Process. Lett. 104(6) (2007) 220-227]. - Andrzej Lingas; Leonidas Palios; Agnieszka Wasylewicz; Pawel Zylinski (Inf. Process. Lett., 2014)