@misc{indiciae54f88505601d, title = {Green and red three-photon upconversion from polymeric lanthanide(III) complexes.}, author = {Ka-Leung Wong and Wai-Ming Kwok and Wing-Tak Wong and David Lee Phillips and Kok-Wai Cheah}, year = {2004}, doi = {10.1002/anie.200460576}, url = {https://pubmed.ncbi.nlm.nih.gov/15352197/}, note = {Source identifier: 15352197} }