| article html file updated | 9 February 2020 02:14 CET | Update | https://www.mdpi.com/1422-0067/19/1/168 |
| article html file updated | 29 September 2019 17:34 CEST | Update | N/A |
| article html file updated | 2 May 2019 03:56 CEST | Update | N/A |
| article html file updated | 18 April 2019 02:03 CEST | Update | N/A |
| article html file updated | 28 March 2019 13:39 CET | Update | N/A |
| article html file updated | 2 February 2018 09:48 CET | Update | N/A |
| article html file updated | 6 January 2018 14:05 CET | Original file | N/A |
| article xml uploaded. | 6 January 2018 14:04 CET | Update | https://www.mdpi.com/1422-0067/19/1/168/xml |
| article pdf uploaded. | 6 January 2018 14:04 CET | Version of Record | https://www.mdpi.com/1422-0067/19/1/168/pdf |
