“…As a result of this search, we identified 29 articles in the time interval 1994-2017 (November). These were the following (in chronological, and then alphabetical, order): Kumar, Vrat, and Sushil (1994), Tang and Naim (2004), Zanoni, Ferretti, and Tang (2006), Zhou and Disney (2006), , Pati, Vrat, and Kumar (2010), Ruebeck and Pfaffmann (2011), Adenso-Díaz et al (2012), Das and Dutta (2013), Jing et al (2013), Lehr, Thun, and Milling (2013), Li (2013), Turrisi, Bruccoleri, and Cannella (2013), Corum, Vayvay, and Bayraktar (2014), , , Shi, Sheng, and Xu (2015), Yuan and Zhang (2015), Cannella, Bruccoleri, and Framinan (2016), He, Yuan, and Zhang (2016), Liu et al (2016), Wei and Yuan (2016), Zhang and Yuan (2016), Dev, Shankar, and Choudhary (2017), Harris and Natarajarathinam (2017), Salviano and Andres (2017), Wang et al (2017), Zhang, Li, and Zhang (2017), and Zhou, Naim, and Disney (2017).…”