| article html file updated | 8 February 2020 03:23 CET | Update | https://www.mdpi.com/2227-9717/5/2/17 |
| article html file updated | 24 September 2019 06:36 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:36 CEST | Update | N/A |
| article html file updated | 29 June 2017 12:48 CEST | Update | N/A |
| article html file updated | 13 April 2017 08:42 CEST | Original file | N/A |
| article xml uploaded. | 13 April 2017 08:40 CEST | Update | https://www.mdpi.com/2227-9717/5/2/17/xml |
| article pdf uploaded. | 13 April 2017 08:40 CEST | Updated version of record | https://www.mdpi.com/2227-9717/5/2/17/pdf |
| article pdf uploaded. | 11 April 2017 14:44 CEST | Version of Record | https://www.mdpi.com/2227-9717/5/2/17/pdf-vor |
