“…In addition to Europe, a number of papers report research conducted in other locations, with a small representation of Brazil (Melegati et al , 2019; de Paula and Araujo, 2016; Tolfo et al , 2018; Ximenes et al , 2015), the USA (Kumar et al , 2018; May, 2012), China (Li et al , 2014; Yang et al , 2019), Indonesia (Nirwan and Dhewanto, 2015), Singapore (Chan et al , 2019) and Malaysia (Ekpe et al , 2017). The small number of investigations outside Europe highlights the lack of research and opportunities in other continents, especially in developing countries.…”