| article html file updated | 9 February 2020 01:53 CET | Update | https://www.mdpi.com/2220-9964/7/1/12 |
| article html file updated | 29 September 2019 15:40 CEST | Update | N/A |
| article html file updated | 2 May 2019 04:39 CEST | Update | N/A |
| article html file updated | 18 April 2019 02:43 CEST | Update | N/A |
| article html file updated | 28 March 2019 12:51 CET | Update | N/A |
| article html file updated | 1 February 2018 09:58 CET | Update | N/A |
| article html file updated | 3 January 2018 12:56 CET | Original file | N/A |
| article xml uploaded. | 3 January 2018 12:54 CET | Update | https://www.mdpi.com/2220-9964/7/1/12/xml |
| article pdf uploaded. | 3 January 2018 12:54 CET | Version of Record | https://www.mdpi.com/2220-9964/7/1/12/pdf |
