Robuta

https://www.kth.se/math/kalender/georg-loho-quotients-in-discrete-convex-analysis-1.1285866?date=2023-11-29&orgdate=2023-03-19&length=1&orglength=0

https://www.scielo.org.mx/scielo.php?script=sci_abstract&pid=S2007-11322016000300019&lng=pt&nrm=iso&tlng=en