| article html file updated | 8 February 2020 02:35 CET | Update | https://www.mdpi.com/2076-3417/7/4/340 |
| article html file updated | 24 September 2019 02:09 CEST | Update | N/A |
| article html file updated | 4 May 2019 04:18 CEST | Update | N/A |
| article html file updated | 28 April 2017 05:07 CEST | Update | N/A |
| article html file updated | 31 March 2017 12:51 CEST | Original file | N/A |
| article xml uploaded. | 31 March 2017 12:50 CEST | Update | https://www.mdpi.com/2076-3417/7/4/340/xml |
| article pdf uploaded. | 31 March 2017 12:50 CEST | Updated version of record | https://www.mdpi.com/2076-3417/7/4/340/pdf |
| article pdf uploaded. | 30 March 2017 14:34 CEST | Version of Record | https://www.mdpi.com/2076-3417/7/4/340/pdf-vor |
