| article html file updated | 8 February 2020 03:15 CET | Update | https://www.mdpi.com/2304-6732/4/2/29 |
| article html file updated | 24 September 2019 05:55 CEST | Update | - |
| article html file updated | 4 May 2019 02:51 CEST | Update | - |
| article html file updated | 29 June 2017 12:53 CEST | Update | - |
| article html file updated | 12 April 2017 04:21 CEST | Original file | - |
| article xml uploaded. | 12 April 2017 04:19 CEST | Update | https://www.mdpi.com/2304-6732/4/2/29/xml |
| article pdf uploaded. | 12 April 2017 04:19 CEST | Updated version of record | https://www.mdpi.com/2304-6732/4/2/29/pdf |
| article pdf uploaded. | 10 April 2017 15:19 CEST | Version of Record | https://www.mdpi.com/2304-6732/4/2/29/pdf-vor |
