| article html file updated | 8 February 2020 12:01 CET | Update | https://www.mdpi.com/1999-5903/9/3/39 |
| article html file updated | 26 September 2019 04:10 CEST | Update | N/A |
| article html file updated | 3 May 2019 10:14 CEST | Update | N/A |
| article html file updated | 27 March 2019 17:42 CET | Update | N/A |
| article html file updated | 30 September 2017 14:01 CEST | Update | N/A |
| article html file updated | 28 July 2017 09:08 CEST | Update | N/A |
| article xml uploaded. | 28 July 2017 09:07 CEST | Update | https://www.mdpi.com/1999-5903/9/3/39/xml |
| article pdf uploaded. | 28 July 2017 09:07 CEST | Updated version of record | https://www.mdpi.com/1999-5903/9/3/39/pdf |
| article html file updated | 26 July 2017 16:18 CEST | Original file | N/A |
| article pdf uploaded. | 26 July 2017 16:17 CEST | Updated version of record | https://www.mdpi.com/1999-5903/9/3/39/pdf-vor |
| article pdf uploaded. | 26 July 2017 16:12 CEST | Version of Record | https://www.mdpi.com/1999-5903/9/3/39/pdf-vor |
