| article html file updated | 7 February 2020 10:21 CET | Update | https://www.mdpi.com/2311-5521/1/2/19 |
| article html file updated | 21 September 2019 19:16 CEST | Update | N/A |
| article html file updated | 5 May 2019 12:36 CEST | Update | N/A |
| article html file updated | 27 March 2019 07:49 CET | Update | N/A |
| article html file updated | 27 October 2017 10:21 CEST | Update | N/A |
| article html file updated | 18 June 2016 07:35 CEST | Original file | N/A |
| article xml uploaded. | 18 June 2016 07:33 CEST | Original file | https://www.mdpi.com/2311-5521/1/2/19/xml |
| article pdf uploaded. | 18 June 2016 07:33 CEST | Version of Record | https://www.mdpi.com/2311-5521/1/2/19/pdf |
