| article html file updated | 9 February 2020 15:29 CET | Update | https://www.mdpi.com/2227-9709/5/2/21 |
| article html file updated | 3 October 2019 00:35 CEST | Update | N/A |
| article html file updated | 1 May 2019 00:16 CEST | Update | N/A |
| article html file updated | 17 April 2019 00:56 CEST | Update | N/A |
| article html file updated | 29 March 2019 19:36 CET | Update | N/A |
| article html file updated | 27 June 2018 09:52 CEST | Update | N/A |
| article html file updated | 26 April 2018 13:36 CEST | Original file | N/A |
| article pdf uploaded. | 26 April 2018 13:35 CEST | Version of Record | https://www.mdpi.com/2227-9709/5/2/21/pdf |
| article xml uploaded. | 26 April 2018 13:35 CEST | Update | https://www.mdpi.com/2227-9709/5/2/21/xml |
| article xml file uploaded | 26 April 2018 13:35 CEST | Original file | N/A |
