| article html file updated | 9 February 2020 03:42 CET | Update | https://www.mdpi.com/1996-1073/11/1/249 |
| article html file updated | 30 September 2019 01:57 CEST | Update | N/A |
| article html file updated | 2 May 2019 00:55 CEST | Update | N/A |
| article html file updated | 17 April 2019 23:18 CEST | Update | N/A |
| article html file updated | 28 March 2019 17:01 CET | Update | N/A |
| article html file updated | 1 February 2018 14:29 CET | Update | N/A |
| article html file updated | 22 January 2018 10:58 CET | Original file | N/A |
| article xml uploaded. | 22 January 2018 10:56 CET | Original file | https://www.mdpi.com/1996-1073/11/1/249/xml |
| article pdf uploaded. | 22 January 2018 10:56 CET | Updated version of record | https://www.mdpi.com/1996-1073/11/1/249/pdf |
| article pdf uploaded. | 19 January 2018 18:38 CET | Version of Record | https://www.mdpi.com/1996-1073/11/1/249/pdf-vor |
