| article html file updated | 7 February 2020 10:40 CET | Update | https://www.mdpi.com/1422-0067/17/7/993 |
| article html file updated | 5 May 2019 12:00 CEST | Update | N/A |
| article html file updated | 27 March 2019 08:22 CET | Update | N/A |
| article html file updated | 28 July 2016 07:22 CEST | Update | N/A |
| article html file updated | 23 June 2016 13:28 CEST | Original file | N/A |
| article xml uploaded. | 23 June 2016 13:26 CEST | Update | https://www.mdpi.com/1422-0067/17/7/993/xml |
| article pdf uploaded. | 23 June 2016 13:26 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/7/993/pdf |
