1. A. Andrioni, R. de Freitas, C. Lavor, L. Liberti, N. Maculan, A. Mucherino, Workshop on Distance Geometry and Applications, DGA 2013. http://dga2013.icomp.ufam.edu.br/.
2. Unit disk graphs recognition is NP-hard;Breu;Comput. Geom.,1998
3. Linear-time approximation for dominating sets and independent dominating sets in unit disk graphs;da Fonseca,2013
4. Efficient sub-5 approximations for dominating sets in unit disk graphs;da Fonseca;Theoret. Comput. Sci.,2014
5. Solving systems of polynomial inequalities in subexponential time;Grigor’ev;J. Symbolic. Comput.,1988