| article html file updated | 6 February 2020 16:19 CET | Update | https://www.mdpi.com/2075-4701/5/1/256 |
| article html file updated | 7 May 2019 00:19 CEST | Update | N/A |
| article html file updated | 25 March 2019 22:27 CET | Update | N/A |
| article html file updated | 21 August 2015 08:14 CEST | Update | N/A |
| article html file updated | 10 March 2015 07:35 CET | Original file | N/A |
| article xml file uploaded | 10 March 2015 07:35 CET | Original file | https://www.mdpi.com/2075-4701/5/1/256/xml |
| article pdf uploaded. | 6 March 2015 11:26 CET | Updated version of record | https://www.mdpi.com/2075-4701/5/1/256/pdf |
| article pdf uploaded. | 4 March 2015 13:05 CET | Version of Record | https://www.mdpi.com/2075-4701/5/1/256/pdf-vor |
