| article html file updated | 8 February 2020 07:24 CET | Update | https://www.mdpi.com/2227-9717/5/2/30 |
| article html file updated | 25 September 2019 03:51 CEST | Update | N/A |
| article html file updated | 3 May 2019 19:06 CEST | Update | N/A |
| article html file updated | 29 June 2017 12:50 CEST | Update | N/A |
| article html file updated | 3 June 2017 13:28 CEST | Original file | N/A |
| article xml uploaded. | 3 June 2017 13:26 CEST | Original file | https://www.mdpi.com/2227-9717/5/2/30/xml |
| article pdf uploaded. | 3 June 2017 13:26 CEST | Version of Record | https://www.mdpi.com/2227-9717/5/2/30/pdf |
