@article{article6f5b545d,
title   = {Prediction of Second-Order nonlinear optical properties of D–p–A compounds containing novel fluorene derivatives: a promising route to giant hyperpolarizabilities},
author = {Khan, Muhammad Usman and Ibrahim, Muhammad and khalid, Muhammad and Braga, Ataualpa Albert Carmo and Ahmed, Sarfraz and Sultan, Ayesha},
year = {2019},
doi = {10.1007/s10876-018-01489-1},
journal   = {Journal of Cluster Science}
}