| article html file updated | 9 February 2020 18:33 CET | Update | https://www.mdpi.com/2306-5729/3/2/17 |
| article html file updated | 3 October 2019 20:14 CEST | Update | N/A |
| article html file updated | 30 April 2019 17:47 CEST | Update | N/A |
| article html file updated | 16 April 2019 18:13 CEST | Update | N/A |
| article html file updated | 30 March 2019 03:19 CET | Update | N/A |
| article html file updated | 26 June 2018 12:47 CEST | Update | N/A |
| article html file updated | 22 May 2018 10:41 CEST | Original file | N/A |
| article pdf uploaded. | 22 May 2018 10:40 CEST | Version of Record | https://www.mdpi.com/2306-5729/3/2/17/pdf |
| article xml uploaded. | 22 May 2018 10:40 CEST | Update | https://www.mdpi.com/2306-5729/3/2/17/xml |
| article xml file uploaded | 22 May 2018 10:40 CEST | Original file | N/A |
