| article html file updated | 7 February 2020 23:09 CET | Update | https://www.mdpi.com/1999-5903/9/1/5 |
| article html file updated | 23 September 2019 06:37 CEST | Update | N/A |
| article html file updated | 4 May 2019 11:44 CEST | Update | N/A |
| article html file updated | 30 March 2017 03:34 CEST | Update | N/A |
| article html file updated | 20 February 2017 04:27 CET | Original file | N/A |
| article xml uploaded. | 20 February 2017 04:25 CET | Update | https://www.mdpi.com/1999-5903/9/1/5/xml |
| article xml uploaded. | 20 February 2017 04:25 CET | Original file | N/A |
| article pdf uploaded. | 20 February 2017 04:25 CET | Updated version of record | https://www.mdpi.com/1999-5903/9/1/5/pdf |
| article pdf uploaded. | 10 February 2017 16:38 CET | Version of Record | https://www.mdpi.com/1999-5903/9/1/5/pdf-vor |
