Table 4.
The significant and persuasive research papers in clusters of TI and WTM in CRE
| First cluster | `Second cluster | Third cluster | Fourth cluster |
|---|---|---|---|
| Mastos et al. (2021) | Lieder and Rashid (2016) | Govindan and Soleimani (2017) | Sakai et al. (2011) |
| Iacovidou et al. (2017a) | Dong et al. (2013) | Shahbazi et al. (2016) | Ramesh Kumar et al. (2020) |
| Liguori and Faraco (2016) | Ghisellini et al. (2016) | Krikke et al. (2003) | Brooks et al. (2018) |
| Iacovidou et al. (2017b) | Kushairi et al. (2018) | Abdallah et al. (2012) | Koop and van Leeuwen (2017) |
| Nižetić et al. (2019) | Wu et al. (2021) | Pedram et al. (2017) | Blank et al. (2020) |
| Bjørnbet et al. (2021) | Bachmann (2007) | Lee and Chan (2009) | Horodytska et al. (2018) |
| Egle et al. (2015) | Pan et al. (2015) | Ferronato et al. (2019) | Luttenberger (2020) |
| Shayganmehr et al. (2021) | Huang et al. (2018) | Gu et al. (2019) | Van Eygen et al. (2018) |
| Pan et al. (2015) | Alhawari et al. (2021) | Khan et al. (2021b) | Faraca and Astrup (2019) |
| Van Ewijk and Stegemann (2016) | Winans et al. (2017) | Islam and Huda (2018) | Jambeck et al. (2018) |
| Kacprzak et al. (2017) | de Jesus and Mendonça (2018) | Sazvar et al. (2021) | Iacovidou et al. (2019) |
| Haupt et al. (2017) | Merli et al. (2018) | Vahdani et al. (2013) | Payne et al. (2019) |
| Lopez de Sousa Jabbour et al. (2018) | Reike et al. (2018) | Dyczkowska et al. (2020) | Eriksen et al. (2019) |
| Reike et al. (2018) | Singh and Ordoñez (2016) | Mohtashami et al. (2020) | Tomić and Schneider (2020) |
| Yadav et al. (2020) | Hussain and Malik (2020) | Sazvar et al. (2021) | Salmenperä et al. (2021) |
| Sherwood (2020a) | McDowall et al. (2017) | ||
| Dantas et al. (2021) |