| article html file updated | 7 February 2020 06:07 CET | Update | https://www.mdpi.com/1422-0067/17/3/399 |
| article html file updated | 5 May 2019 20:59 CEST | Update | N/A |
| article html file updated | 26 March 2019 23:51 CET | Update | N/A |
| article html file updated | 30 March 2016 12:04 CEST | Original file | N/A |
| article xml uploaded. | 18 March 2016 11:31 CET | Original file | https://www.mdpi.com/1422-0067/17/3/399/xml |
| article pdf uploaded. | 18 March 2016 11:31 CET | Version of Record | https://www.mdpi.com/1422-0067/17/3/399/pdf |
