BibTex format
@article{Ibrogimov:2021:10.1002/mana.202000196,
author = {Ibrogimov, OO and Krejcirik, D and Laptev, A},
doi = {10.1002/mana.202000196},
journal = {Mathematische Nachrichten},
pages = {1333--1349},
title = {Sharp bounds for eigenvalues of biharmonic operators with complex potentials in low dimensions},
url = {http://dx.doi.org/10.1002/mana.202000196},
volume = {294},
year = {2021}
}