| article html file updated | 7 February 2020 06:50 CET | Update | https://www.mdpi.com/2073-4441/8/4/133 |
| article html file updated | 5 May 2019 19:35 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:02 CET | Update | N/A |
| article html file updated | 28 April 2016 12:20 CEST | Update | N/A |
| article html file updated | 5 April 2016 10:47 CEST | Original file | N/A |
| article xml uploaded. | 5 April 2016 10:46 CEST | Original file | https://www.mdpi.com/2073-4441/8/4/133/xml |
| article pdf uploaded. | 5 April 2016 10:46 CEST | Version of Record | https://www.mdpi.com/2073-4441/8/4/133/pdf |
