Multi Order Coverage data structure to plan multi-messenger observations. - Giuseppe Greco 005; Michele Punturo; Mark G. Allen; Ada Nebot; Pierre Fernique; Matthieu Baumann; François-Xavier Pineau; Thomas Boch; Sébastien Derriere; Marica Branchesi; Mateusz Bawaj; Helios Vocca (Astron. Comput., 2022)