1.
Kaski P, Kohonen J, Westerbäck T. Fast Möbius Inversion in Semimodular Lattices and ER-labelable Posets. Electron. J. Combin. [Internet]. 2016Aug.19 [cited 2026Apr.3];23(3):P3.26. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v23i3p26