| article html file updated | 8 February 2020 02:53 CET | Update | https://www.mdpi.com/2304-8158/6/4/28 |
| article html file updated | 24 September 2019 03:53 CEST | Update | - |
| article html file updated | 4 May 2019 03:38 CEST | Update | - |
| article html file updated | 28 April 2017 07:58 CEST | Update | - |
| article html file updated | 20 April 2017 12:01 CEST | Update | - |
| article xml uploaded. | 20 April 2017 12:00 CEST | Update | https://www.mdpi.com/2304-8158/6/4/28/xml |
| article pdf uploaded. | 20 April 2017 12:00 CEST | Updated version of record | https://www.mdpi.com/2304-8158/6/4/28/pdf |
| article html file updated | 5 April 2017 10:51 CEST | Original file | - |
| article pdf uploaded. | 5 April 2017 10:50 CEST | Updated version of record | https://www.mdpi.com/2304-8158/6/4/28/pdf-vor |
| article pdf uploaded. | 4 April 2017 12:06 CEST | Version of Record | https://www.mdpi.com/2304-8158/6/4/28/pdf-vor |
