@article{BGR17,
author = {O. Bodini and A. Genitrini and N. Rolin},
title = {Extended boxed product and application to synchronized trees},
journal = {Electronic Notes in Discrete Mathematics},
volume = {59},
pages = {189--202},
year = {2017},
doi = {https://doi.org/10.1016/j.endm.2017.05.014}
}