| article html file updated | 9 February 2020 13:43 CET | Update | https://www.mdpi.com/2220-9964/7/4/147 |
| article html file updated | 2 October 2019 14:23 CEST | Update | N/A |
| article html file updated | 1 May 2019 03:41 CEST | Update | N/A |
| article html file updated | 17 April 2019 04:03 CEST | Update | N/A |
| article html file updated | 29 March 2019 15:27 CET | Update | N/A |
| article html file updated | 1 May 2018 04:00 CEST | Update | N/A |
| article html file updated | 13 April 2018 16:29 CEST | Original file | N/A |
| article xml uploaded. | 13 April 2018 16:28 CEST | Original file | https://www.mdpi.com/2220-9964/7/4/147/xml |
| article pdf uploaded. | 13 April 2018 16:28 CEST | Version of Record | https://www.mdpi.com/2220-9964/7/4/147/pdf |
