| article html file updated | 8 February 2020 01:12 CET | Update | https://www.mdpi.com/2073-4441/9/3/199 |
| article html file updated | 23 September 2019 18:18 CEST | Update | - |
| article html file updated | 4 May 2019 07:18 CEST | Update | - |
| article html file updated | 28 March 2017 03:47 CEST | Update | - |
| article html file updated | 13 March 2017 07:56 CET | Original file | - |
| article xml uploaded. | 13 March 2017 07:54 CET | Original file | https://www.mdpi.com/2073-4441/9/3/199/xml |
| article pdf uploaded. | 13 March 2017 07:54 CET | Updated version of record | https://www.mdpi.com/2073-4441/9/3/199/pdf |
| article pdf uploaded. | 10 March 2017 11:54 CET | Version of Record | https://www.mdpi.com/2073-4441/9/3/199/pdf-vor |
