| article html file updated | 7 February 2020 14:53 CET | Update | https://www.mdpi.com/2077-1312/4/3/58 |
| article html file updated | 5 May 2019 04:17 CEST | Update | - |
| article html file updated | 27 October 2017 11:04 CEST | Update | - |
| article pdf uploaded. | 13 September 2016 11:47 CEST | Updated version of record | https://www.mdpi.com/2077-1312/4/3/58/pdf |
| article html file updated | 13 September 2016 03:31 CEST | Original file | - |
| article xml uploaded. | 13 September 2016 03:29 CEST | Original file | https://www.mdpi.com/2077-1312/4/3/58/xml |
| article pdf uploaded. | 13 September 2016 03:29 CEST | Version of Record | https://www.mdpi.com/2077-1312/4/3/58/pdf-vor |
