| article html file updated | 7 February 2020 22:36 CET | Update | https://www.mdpi.com/1422-0067/18/2/320 |
| article html file updated | 23 September 2019 03:32 CEST | Update | - |
| article html file updated | 4 May 2019 12:50 CEST | Update | - |
| article html file updated | 2 March 2017 09:57 CET | Update | - |
| article html file updated | 21 February 2017 02:37 CET | Update | - |
| article xml uploaded. | 21 February 2017 02:35 CET | Original file | https://www.mdpi.com/1422-0067/18/2/320/xml |
| article pdf uploaded. | 21 February 2017 02:35 CET | Updated version of record | https://www.mdpi.com/1422-0067/18/2/320/pdf |
| article pdf uploaded. | 4 February 2017 12:14 CET | Version of Record | https://www.mdpi.com/1422-0067/18/2/320/pdf-vor |
| article html file updated | 4 February 2017 05:37 CET | Original file | - |
