Thermodynamic analysis for Non-linear system (Van-der-Waals EOS) with viscous cosmologyShouvik Sadhukhan, Alokananda Kar and Surajit ChattopadhayEur. Phys. J. C, 81 10 (2021) 934DOI: https://doi.org/10.1140/epjc/s10052-021-09738-w