| article html file updated | 9 February 2020 04:43 CET | Update | https://www.mdpi.com/2073-4344/8/2/52 |
| article html file updated | 30 September 2019 07:41 CEST | Update | N/A |
| article html file updated | 1 May 2019 22:47 CEST | Update | N/A |
| article html file updated | 17 April 2019 21:26 CEST | Update | N/A |
| article html file updated | 28 March 2019 19:09 CET | Update | N/A |
| article html file updated | 14 March 2018 08:41 CET | Update | N/A |
| article html file updated | 29 January 2018 10:17 CET | Original file | N/A |
| article xml uploaded. | 29 January 2018 10:16 CET | Update | https://www.mdpi.com/2073-4344/8/2/52/xml |
| article xml uploaded. | 29 January 2018 10:16 CET | Original file | N/A |
| article pdf uploaded. | 29 January 2018 10:16 CET | Version of Record | https://www.mdpi.com/2073-4344/8/2/52/pdf |
