Additional resources have been: https://discuss.tryton.org/t/close-a-fiscal-year/1249
https://www-zikzakmedia-com.translate.goog/es/blog/tryton-cierre-del-ejercicio-fiscal.html?_x_tr_sch=http&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en