| article html file updated | 7 February 2020 04:57 CET | Update | https://www.mdpi.com/1422-0067/17/3/277 |
| article html file updated | 5 May 2019 23:27 CEST | Update | N/A |
| article html file updated | 26 March 2019 21:32 CET | Update | N/A |
| article html file updated | 30 March 2016 11:59 CEST | Original file | N/A |
| article pdf uploaded. | 24 February 2016 14:05 CET | Version of Record | https://www.mdpi.com/1422-0067/17/3/277/pdf |
| article xml uploaded. | 24 February 2016 14:05 CET | Original file | https://www.mdpi.com/1422-0067/17/3/277/xml |
