| article html file updated | 7 February 2020 01:40 CET | Update | https://www.mdpi.com/2072-6643/7/12/5503 |
| article html file updated | 21 September 2019 07:04 CEST | Update | N/A |
| article html file updated | 6 May 2019 06:08 CEST | Update | N/A |
| article html file updated | 26 March 2019 15:34 CET | Original file | N/A |
| article pdf uploaded. | 2 December 2015 10:55 CET | Version of Record | https://www.mdpi.com/2072-6643/7/12/5503/pdf |
| article xml uploaded. | 2 December 2015 10:55 CET | Original file | https://www.mdpi.com/2072-6643/7/12/5503/xml |
