| article html file updated | 7 February 2020 06:17 CET | Update | https://www.mdpi.com/2072-6643/8/4/181 |
| article html file updated | 5 May 2019 20:39 CEST | Update | N/A |
| article html file updated | 27 March 2019 00:08 CET | Update | N/A |
| article html file updated | 28 April 2016 09:19 CEST | Update | N/A |
| article html file updated | 31 March 2016 11:52 CEST | Original file | N/A |
| article xml uploaded. | 31 March 2016 11:51 CEST | Update | https://www.mdpi.com/2072-6643/8/4/181/xml |
| article pdf uploaded. | 31 March 2016 11:51 CEST | Updated version of record | https://www.mdpi.com/2072-6643/8/4/181/pdf |
| article pdf uploaded. | 23 March 2016 10:54 CET | Version of Record | https://www.mdpi.com/2072-6643/8/4/181/pdf-vor |
