| 2015-06-10 | Reference included | | | Van Keer & Jacobs, 2015 |
| 2015-06-10 | Reference included | | | El-Hennawy, Mohafez & El-Gendy, 2015 |
| 2015-06-10 | Reference included | | | El-Hennawy et al., 2015 |
| 2015-06-10 | Reference included | | | Bodkhe, Manthen & Uniyal, 2015 |
| 2015-06-10 | Reference included | | | Planas & Ribera, 2015 |
| 2015-06-10 | Reference included | | | Tanasevitch & Wunderlich, 2015 |
| 2015-06-10 | Reference included | | | Wunderlich, 2015b |
| 2015-06-10 | Reference included | | | Araújo & Ruiz, 2015 |
| 2015-06-10 | Reference included | | | Siliwal et al., 2015 |
| 2015-06-10 | Reference included | | | Ballarin & Li, 2015 |
| 2015-06-09 | Reference included | | | Pedroso, Baptista & Bertani, 2015 |
| 2015-06-09 | Reference included | | | Kim, 1999c |
| 2015-06-09 | Reference included | | | Kim, 1998d |
| 2015-06-09 | Reference included | | | Raven, 2015 |
| 2015-06-08 | Reference included | | | Bosmans & Gasparo, 2015 |
| 2015-06-03 | Reference included | | | Ribera & De Mas, 2015 |
| 2015-06-03 | Reference included | | | Dupérré, 2015a |
| 2015-06-03 | Reference included | | | Teixeira & Barros, 2015 |
| 2015-06-01 | Reference included | | | Estrada-Alvarez, 2014 |
| 2015-05-26 | Reference included | | | Yuan & Peng, 2014 |
| 2015-05-26 | Reference included | | | Lee et al., 2015b |
| 2015-05-26 | Reference included | | | Lee, Yoo & Kim, 2015a |
| 2015-05-26 | Reference included | | | Liu, Wang & Zhang, 2015 |
| 2015-05-26 | Reference included | | | Jiang & Chen, 2015 |
| 2015-05-26 | Reference included | | | Nanayakkara et al., 2015 |
| 2015-05-26 | Reference included | | | Pravalikha & Srinivasulu, 2015 |
| 2015-05-26 | Reference included | | | Wongprom & Wiwatwitaya, 2015 |
| 2015-05-20 | Reference included | | | Wu, Zheng & Zhang, 2015 |
| 2015-05-20 | Reference included | | | Dzulhelmi et al., 2015 |
| 2015-05-20 | Reference included | | | Meng, Zhang & Shi, 2015 |
| 2015-05-19 | Reference included | | | Patoleta & Trębicki, 2015 |
| 2015-05-19 | Reference included | | | Caleb, Mungkung & Mathai, 2015 |
| 2015-05-19 | Reference included | | | Esyunin & Tuneva, 2015 |
| 2015-05-18 | Reference included | | | Ott & Ott, 2015 |
| 2015-05-18 | Reference included | | | Talukdar & Sanyal, 2013 |
| 2015-05-06 | Reference included | | | Isaia & Chiarle, 2015 |
| 2015-05-06 | Reference included | | | Siliwal, Molur & Raven, 2015 |
| 2015-05-06 | Reference included | | | Kulkarni & Yadav, 2015 |
| 2015-05-06 | Reference included | | | Barrion-Dupo, Barrion & Rasalan, 2015 |
| 2015-05-06 | Reference included | | | Otto & Hill, 2015b |
| 2015-05-05 | Reference included | | | Fomichev & Marusik, 2015a |
| 2015-05-05 | Reference included | | | Ott et al., 2015a |
| 2015-05-05 | Reference included | | | Silva, Gibbons & Sierwald, 2015 |
| 2015-05-05 | Reference included | | | Kovács et al., 2015 |
| 2015-05-04 | Reference included | | | Sebastian et al., 2015 |
| 2015-05-04 | Reference included | | | Giroti & Brescovit, 2015 |
| 2015-05-04 | Reference included | | | Tong & Li, 2015b |
| 2015-05-04 | Reference included | | | Xu et al., 2015a |
| 2015-05-04 | Reference included | | | Hedin, 2015 |
| 2015-04-30 | Reference included | | | Huber, 2015 |