| article html file updated | 6 February 2020 00:48 CET | Update | https://www.mdpi.com/2075-4701/3/1/150 |
| article html file updated | 8 May 2019 07:46 CEST | Update | N/A |
| article html file updated | 20 March 2019 19:18 CET | Update | N/A |
| article html file updated | 17 June 2015 07:08 CEST | Update | N/A |
| article html file updated | 19 September 2014 11:19 CEST | Original file | N/A |
| article xml file uploaded | 19 September 2014 11:19 CEST | Original file | https://www.mdpi.com/2075-4701/3/1/150/xml |
| article pdf uploaded. | 7 March 2013 16:22 CET | Updated version of record | https://www.mdpi.com/2075-4701/3/1/150/pdf |
| article pdf uploaded. | 5 March 2013 11:38 CET | Version of Record | https://www.mdpi.com/2075-4701/3/1/150/pdf-vor |
