| article html file updated | 7 February 2020 10:02 CET | Update | https://www.mdpi.com/2304-6732/3/2/38 |
| article html file updated | 5 May 2019 13:13 CEST | Update | - |
| article html file updated | 27 March 2019 07:14 CET | Update | - |
| article html file updated | 1 July 2016 13:35 CEST | Update | - |
| article html file updated | 16 June 2016 11:08 CEST | Update | - |
| article xml uploaded. | 16 June 2016 11:06 CEST | Update | https://www.mdpi.com/2304-6732/3/2/38/xml |
| article pdf uploaded. | 16 June 2016 11:06 CEST | Updated version of record | https://www.mdpi.com/2304-6732/3/2/38/pdf |
| article html file updated | 10 June 2016 12:51 CEST | Original file | - |
| article pdf uploaded. | 10 June 2016 12:50 CEST | Version of Record | https://www.mdpi.com/2304-6732/3/2/38/pdf-vor |
