| article html file updated | 8 February 2020 11:59 CET | Update | https://www.mdpi.com/2079-9276/6/3/33 |
| article html file updated | 26 September 2019 03:59 CEST | Update | - |
| article html file updated | 3 May 2019 10:21 CEST | Update | - |
| article html file updated | 27 March 2019 17:38 CET | Update | - |
| article html file updated | 6 October 2017 05:11 CEST | Update | - |
| article html file updated | 1 August 2017 08:04 CEST | Update | - |
| article xml uploaded. | 1 August 2017 08:03 CEST | Update | https://www.mdpi.com/2079-9276/6/3/33/xml |
| article pdf uploaded. | 1 August 2017 08:03 CEST | Updated version of record | https://www.mdpi.com/2079-9276/6/3/33/pdf |
| article html file updated | 25 July 2017 15:26 CEST | Original file | - |
| article pdf uploaded. | 25 July 2017 15:24 CEST | Version of Record | https://www.mdpi.com/2079-9276/6/3/33/pdf-vor |
