| article html file updated | 6 February 2020 03:20 CET | Update | https://www.mdpi.com/2304-8158/2/3/332 |
| article html file updated | 19 September 2019 23:03 CEST | Update | N/A |
| article html file updated | 8 May 2019 02:39 CEST | Update | N/A |
| article html file updated | 21 March 2019 01:38 CET | Update | N/A |
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| article html file updated | 17 June 2015 11:31 CEST | Original file | N/A |
| article pdf uploaded. | 19 July 2013 12:00 CEST | Version of Record | https://www.mdpi.com/2304-8158/2/3/332/pdf |
