| article html file updated | 7 February 2020 22:32 CET | Update | https://www.mdpi.com/2073-4441/9/2/87 |
| article html file updated | 23 September 2019 03:11 CEST | Update | - |
| article html file updated | 4 May 2019 12:59 CEST | Update | - |
| article html file updated | 1 March 2017 07:58 CET | Update | - |
| article html file updated | 11 February 2017 07:16 CET | Original file | - |
| article xml uploaded. | 11 February 2017 07:14 CET | Original file | https://www.mdpi.com/2073-4441/9/2/87/xml |
| article pdf uploaded. | 11 February 2017 07:14 CET | Updated version of record | https://www.mdpi.com/2073-4441/9/2/87/pdf |
| article pdf uploaded. | 2 February 2017 10:59 CET | Updated version of record | https://www.mdpi.com/2073-4441/9/2/87/pdf-vor |
| article pdf uploaded. | 31 January 2017 11:43 CET | Version of Record | https://www.mdpi.com/2073-4441/9/2/87/pdf-vor |
