| article html file updated | 9 February 2020 01:53 CET | Update | https://www.mdpi.com/1996-1073/11/1/113 |
| article html file updated | 29 September 2019 15:36 CEST | Update | N/A |
| article html file updated | 2 May 2019 04:41 CEST | Update | N/A |
| article html file updated | 18 April 2019 02:44 CEST | Update | N/A |
| article html file updated | 28 March 2019 12:49 CET | Update | N/A |
| article html file updated | 1 February 2018 12:40 CET | Update | N/A |
| article html file updated | 18 January 2018 10:43 CET | Update | N/A |
| article xml uploaded. | 18 January 2018 10:42 CET | Update | https://www.mdpi.com/1996-1073/11/1/113/xml |
| article xml uploaded. | 18 January 2018 10:42 CET | Update | N/A |
| article xml uploaded. | 18 January 2018 10:42 CET | Update | N/A |
| article pdf uploaded. | 18 January 2018 10:42 CET | Updated version of record | https://www.mdpi.com/1996-1073/11/1/113/pdf |
| article html file updated | 3 January 2018 12:56 CET | Original file | N/A |
| article pdf uploaded. | 3 January 2018 12:54 CET | Version of Record | https://www.mdpi.com/1996-1073/11/1/113/pdf-vor |
