| article html file updated | 9 February 2020 03:52 CET | Update | https://www.mdpi.com/1422-0067/19/1/321 |
| article html file updated | 30 September 2019 02:48 CEST | Update | - |
| article html file updated | 2 May 2019 00:34 CEST | Update | - |
| article html file updated | 17 April 2019 22:59 CEST | Update | - |
| article html file updated | 28 March 2019 17:21 CET | Update | - |
| article html file updated | 2 February 2018 09:21 CET | Update | - |
| article html file updated | 22 January 2018 12:31 CET | Original file | - |
| article xml uploaded. | 22 January 2018 12:29 CET | Original file | https://www.mdpi.com/1422-0067/19/1/321/xml |
| article pdf uploaded. | 22 January 2018 12:29 CET | Version of Record | https://www.mdpi.com/1422-0067/19/1/321/pdf |
