@article{PhysRevLett.119.250602,
numpages = {5},
publisher = {American Physical Society},
doi = {10.1103/PhysRevLett.119.250602},
title = {Time Crystal Behavior of Excited Eigenstates},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.119.250602},
journal = {Phys. Rev. Lett.},
author = {Syrwid, Andrzej and Zakrzewski, Jakub and Sacha, Krzysztof},
month = {Dec},
volume = {119},
year = {2017},
issue = {25},
pages = {250602}
}