| article html file updated | 7 February 2020 08:15 CET | Update | https://www.mdpi.com/2311-5521/1/2/14 |
| article html file updated | 5 May 2019 16:40 CEST | Update | N/A |
| article html file updated | 27 March 2019 03:52 CET | Update | N/A |
| article html file updated | 27 October 2017 10:21 CEST | Update | N/A |
| article html file updated | 9 May 2016 22:34 CEST | Update | N/A |
| article xml uploaded. | 9 May 2016 05:22 CEST | Update | https://www.mdpi.com/2311-5521/1/2/14/xml |
| article pdf uploaded. | 9 May 2016 05:22 CEST | Updated version of record | https://www.mdpi.com/2311-5521/1/2/14/pdf |
| article html file updated | 5 May 2016 12:56 CEST | Original file | N/A |
| article pdf uploaded. | 5 May 2016 12:54 CEST | Version of Record | https://www.mdpi.com/2311-5521/1/2/14/pdf-vor |