| article html file updated | 8 February 2020 07:06 CET | Update | https://www.mdpi.com/2227-7080/5/2/29 |
| article html file updated | 25 September 2019 02:21 CEST | Update | N/A |
| article html file updated | 3 May 2019 19:41 CEST | Update | N/A |
| article html file updated | 29 June 2017 11:57 CEST | Update | N/A |
| article html file updated | 1 June 2017 10:15 CEST | Original file | N/A |
| article xml uploaded. | 1 June 2017 10:13 CEST | Original file | https://www.mdpi.com/2227-7080/5/2/29/xml |
| article pdf uploaded. | 1 June 2017 10:13 CEST | Updated version of record | https://www.mdpi.com/2227-7080/5/2/29/pdf |
| article pdf uploaded. | 31 May 2017 12:45 CEST | Version of Record | https://www.mdpi.com/2227-7080/5/2/29/pdf-vor |
