| article html file updated | 9 February 2020 01:27 CET | Update | https://www.mdpi.com/2073-431X/7/1/4 |
| article html file updated | 29 September 2019 13:09 CEST | Update | N/A |
| article html file updated | 2 May 2019 05:35 CEST | Update | N/A |
| article html file updated | 18 April 2019 03:36 CEST | Update | N/A |
| article html file updated | 28 March 2019 11:48 CET | Update | N/A |
| article html file updated | 5 April 2018 04:24 CEST | Update | N/A |
| article html file updated | 26 March 2018 15:56 CEST | Update | N/A |
| article html file updated | 28 December 2017 16:02 CET | Original file | N/A |
| article xml uploaded. | 28 December 2017 16:01 CET | Update | https://www.mdpi.com/2073-431X/7/1/4/xml |
| article xml uploaded. | 28 December 2017 16:01 CET | Original file | N/A |
| article pdf uploaded. | 28 December 2017 16:01 CET | Version of Record | https://www.mdpi.com/2073-431X/7/1/4/pdf |
