| article html file updated | 9 February 2020 10:42 CET | Update | https://www.mdpi.com/2304-8158/7/4/44 |
| article html file updated | 1 October 2019 20:18 CEST | Update | N/A |
| article html file updated | 1 May 2019 09:54 CEST | Update | N/A |
| article html file updated | 17 April 2019 09:47 CEST | Update | N/A |
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| article html file updated | 1 May 2018 05:24 CEST | Update | N/A |
| article html file updated | 21 March 2018 15:50 CET | Original file | N/A |
| article xml uploaded. | 21 March 2018 15:49 CET | Original file | https://www.mdpi.com/2304-8158/7/4/44/xml |
| article pdf uploaded. | 21 March 2018 15:49 CET | Version of Record | https://www.mdpi.com/2304-8158/7/4/44/pdf |
