“…(e.g. [Ijiri, 1965, Lee and Clayton, 1972, Lee, 1973, Ignizio, 1976, Lee et al, 1981, Goicoechea et al, 1982, White, 1982, Lee and Olson, 1985, Sawaragi et al, 1985, Romero, 1991, Martel and Aouni, 1998, Lee and Olson, 1999, Aouni et al, 2005, El-Wahed and Lee, 2006, Kharrat et al, 2007, Aouni et al, 2014). More information about the history of GP and its applications can be found in [Jones and Tamiz, 2002, Caballero et al, 2009, Jones and Tamiz, 2010, Aouni et al, 2014, Colapinto et al, 2015.…”