| article html file updated | 7 February 2020 04:28 CET | Update | https://www.mdpi.com/2072-4292/8/2/139 |
| article html file updated | 6 May 2019 00:34 CEST | Update | - |
| article html file updated | 26 March 2019 20:32 CET | Original file | - |
| article pdf uploaded. | 16 February 2016 04:44 CET | Updated version of record | https://www.mdpi.com/2072-4292/8/2/139/pdf |
| article xml uploaded. | 16 February 2016 04:44 CET | Original file | https://www.mdpi.com/2072-4292/8/2/139/xml |
| article pdf uploaded. | 8 February 2016 09:18 CET | Version of Record | https://www.mdpi.com/2072-4292/8/2/139/pdf-vor |
