| article html file updated | 7 February 2020 23:01 CET | Update | https://www.mdpi.com/2073-4441/9/2/102 |
| article html file updated | 23 September 2019 05:58 CEST | Update | - |
| article html file updated | 4 May 2019 11:58 CEST | Update | - |
| article html file updated | 1 March 2017 08:04 CET | Update | - |
| article html file updated | 23 February 2017 09:54 CET | Original file | - |
| article xml uploaded. | 23 February 2017 09:53 CET | Original file | https://www.mdpi.com/2073-4441/9/2/102/xml |
| article pdf uploaded. | 23 February 2017 09:53 CET | Updated version of record | https://www.mdpi.com/2073-4441/9/2/102/pdf |
| article pdf uploaded. | 10 February 2017 05:09 CET | Version of Record | https://www.mdpi.com/2073-4441/9/2/102/pdf-vor |
