| article html file updated | 7 February 2020 06:36 CET | Update | https://www.mdpi.com/2075-4701/6/4/78 |
| article html file updated | 5 May 2019 20:01 CEST | Update | - |
| article html file updated | 27 March 2019 00:39 CET | Update | - |
| article html file updated | 28 April 2016 12:07 CEST | Update | - |
| article html file updated | 5 April 2016 02:58 CEST | Update | - |
| article xml uploaded. | 5 April 2016 02:57 CEST | Update | https://www.mdpi.com/2075-4701/6/4/78/xml |
| article pdf uploaded. | 5 April 2016 02:57 CEST | Updated version of record | https://www.mdpi.com/2075-4701/6/4/78/pdf |
| article html file updated | 30 March 2016 09:05 CEST | Original file | - |
| article pdf uploaded. | 30 March 2016 09:04 CEST | Version of Record | https://www.mdpi.com/2075-4701/6/4/78/pdf-vor |
