+\use_package amsmath 0
+\use_package amssymb 0
+\use_package cancel 0
+\use_package esint 1
+\use_package mathdots 1
+\use_package mathtools 0
+\use_package mhchem 1
+\use_package stackrel 0
+\use_package stmaryrd 0
+\use_package undertilde 0
+\cite_engine natbib
+\cite_engine_type authoryear
+\biblio_style plainnat