| article html file updated | 8 February 2020 07:24 CET | Update | https://www.mdpi.com/2079-6439/5/2/21 |
| article html file updated | 25 September 2019 03:52 CEST | Update | N/A |
| article html file updated | 3 May 2019 19:06 CEST | Update | N/A |
| article html file updated | 30 June 2017 09:08 CEST | Update | N/A |
| article html file updated | 29 June 2017 11:31 CEST | Update | N/A |
| article html file updated | 6 June 2017 03:00 CEST | Original file | N/A |
| article xml uploaded. | 6 June 2017 02:59 CEST | Original file | https://www.mdpi.com/2079-6439/5/2/21/xml |
| article pdf uploaded. | 6 June 2017 02:59 CEST | Updated version of record | https://www.mdpi.com/2079-6439/5/2/21/pdf |
| article pdf uploaded. | 3 June 2017 13:55 CEST | Version of Record | https://www.mdpi.com/2079-6439/5/2/21/pdf-vor |
