@misc{indiciae8fe51480a822, title = {Multilevel systems: Simultaneously forbidden combination resonances.}, author = {VN Smelyanskiy and GW Ford and RS Conti}, year = {1996}, doi = {10.1103/physreva.53.2598}, url = {https://pubmed.ncbi.nlm.nih.gov/9913172/}, note = {Source identifier: 9913172} }