| article html file updated | 9 February 2020 07:26 CET | Update | https://www.mdpi.com/2227-7390/6/2/29 |
| article html file updated | 1 May 2019 16:45 CEST | Update | - |
| article html file updated | 17 April 2019 16:08 CEST | Update | - |
| article html file updated | 29 March 2019 01:02 CET | Update | - |
| article html file updated | 14 March 2018 10:09 CET | Update | - |
| article html file updated | 24 February 2018 04:34 CET | Original file | - |
| article xml uploaded. | 24 February 2018 04:33 CET | Original file | https://www.mdpi.com/2227-7390/6/2/29/xml |
| article pdf uploaded. | 24 February 2018 04:33 CET | Updated version of record | https://www.mdpi.com/2227-7390/6/2/29/pdf |
| article pdf uploaded. | 23 February 2018 16:31 CET | Version of Record | https://www.mdpi.com/2227-7390/6/2/29/pdf-vor |
