| article html file updated | 7 February 2020 12:06 CET | Update | https://www.mdpi.com/2076-0817/5/3/51 |
| article html file updated | 5 May 2019 09:25 CEST | Update | - |
| article html file updated | 27 March 2019 11:03 CET | Update | - |
| article html file updated | 28 September 2016 11:04 CEST | Update | - |
| article html file updated | 21 July 2016 15:37 CEST | Original file | - |
| article xml uploaded. | 21 July 2016 15:36 CEST | Original file | https://www.mdpi.com/2076-0817/5/3/51/xml |
| article pdf uploaded. | 21 July 2016 15:36 CEST | Version of Record | https://www.mdpi.com/2076-0817/5/3/51/pdf |
