@article{10_37236_9835,
     author = {Marcel Herzog and Gil Kaplan and Arieh Lev and Romina Zigdon},
     title = {\(r\)-critical numbers of natural intervals},
     journal = {The electronic journal of combinatorics},
     year = {2021},
     volume = {28},
     number = {4},
     doi = {10.37236/9835},
     zbl = {1511.11005},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/9835/}
}