Boh´acik J, August´in P, Presnajder P. Non-Perturbative Anharmonic Correction to Mehler’s Presentation of the Harmonic Oscillator Propagator. Ukr. J. Phys. [Internet]. 2018 Oct. 18 [cited 2024 Nov. 22];59(2):179. Available from: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018428