| article html file updated | 8 February 2020 18:03 CET | Update | https://www.mdpi.com/2311-5637/3/4/53 |
| article html file updated | 27 September 2019 15:31 CEST | Update | N/A |
| article html file updated | 2 May 2019 22:09 CEST | Update | N/A |
| article html file updated | 2 January 2018 17:03 CET | Update | N/A |
| article html file updated | 10 October 2017 13:45 CEST | Original file | N/A |
| article xml uploaded. | 10 October 2017 13:43 CEST | Original file | https://www.mdpi.com/2311-5637/3/4/53/xml |
| article pdf uploaded. | 10 October 2017 13:43 CEST | Version of Record | https://www.mdpi.com/2311-5637/3/4/53/pdf |
