| article html file updated | 7 February 2020 22:12 CET | Update | https://www.mdpi.com/1422-0067/18/2/249 |
| article html file updated | 23 September 2019 01:21 CEST | Update | N/A |
| article html file updated | 4 May 2019 13:40 CEST | Update | N/A |
| article html file updated | 2 March 2017 09:45 CET | Update | N/A |
| article html file updated | 25 January 2017 08:51 CET | Original file | N/A |
| article xml uploaded. | 25 January 2017 08:50 CET | Original file | https://www.mdpi.com/1422-0067/18/2/249/xml |
| article pdf uploaded. | 25 January 2017 08:50 CET | Version of Record | https://www.mdpi.com/1422-0067/18/2/249/pdf |
