“SYNTHESIS AND CHARACTERIZATION BY INFRARED AND MOSSBAUER SPECTROSCOPIES OF SOME NEW SnR2 (R = Me, Ph, Bu) RESIDUE CONTAINING ARBOXYALKYLPHOSPHONATE ADDUCTS AND DERIVATIVES”. Journal of Engineering Studies and Research, vol. 29, no. 1, May 2023, pp. 7-14, https://jesr.ub.ro/journal/article/view/361.