Type | Author | Year | Reference |
Fish-like | Park et al. | 2005 | [36] |
Aureli et al. | 2010 | [37] | |
Chen et al. | 2010 | [38] | |
Jellyfish-like | Guo et al. | 2007 | [39] |
Oh et al. | 2009 | [40] | |
Joseph et al. | 2012 | [41] | |
Ray-like | Punning et al. | 2004 | [42] |
Chen et al. | 2011 | [43] | |
Chen et al. | 2011 | [44] |