Nili Guttmann-Beck, Zeev Sorek and Michal Stern. Clustered spanning tree—conditions for feasibility, Discrete Math. Theor. Comput. Sci., volume 21, number 1, pages Paper No. 15, 15, 2019.

Amir Beck and Nili Guttmann-Beck. FOM—a MATLAB toolbox of first-order methods for solving convex optimization problems, Optim. Methods Softw., volume 34, number 1, pages 172–193, 2019.

Nili Guttmann-Beck, Eyal Knaan and Michal Stern. Approximation algorithms for not necessarily disjoint clustered TSP, J. Graph Algorithms Appl., volume 22, number 4, pages 555–575, 2018.