| article html file updated | 7 February 2020 14:22 CET | Update | https://www.mdpi.com/2227-9717/4/3/30 |
| article html file updated | 5 May 2019 05:13 CEST | Update | N/A |
| article html file updated | 27 March 2019 15:53 CET | Update | N/A |
| article html file updated | 28 September 2016 22:58 CEST | Update | N/A |
| article html file updated | 2 September 2016 14:19 CEST | Original file | N/A |
| article xml uploaded. | 2 September 2016 14:17 CEST | Original file | https://www.mdpi.com/2227-9717/4/3/30/xml |
| article pdf uploaded. | 2 September 2016 14:17 CEST | Version of Record | https://www.mdpi.com/2227-9717/4/3/30/pdf |
