A.  Tirella, De Maria, C., Criscenti, G., Vozzi, G., and Ahluwalia, A., ?The PAM2 system: a multilevel approach for fabrication of complex three-dimensional microstructures?, Rapid Prototyping Journal, vol. 18, pp. 299?307, 2012. 

A.  Tirella, Vozzi, F., Vozzi, G., and Ahluwalia, A., ?PAM2 (Piston Assisted Microsyringe): A New Rapid Prototyping Technique for Biofabrication of Cell Incorporated Scaffolds?, Tissue Eng Part C Methods, vol. 17, 2011. 

A.  Tirella, Vozzi, F., Vinci, B., Vozzi, G., and Ahluwalia, A., ?PAM2 microfabricated three-dimensional bioactive hydrogel systems: realisation of a hepatic-like structure?, in Congresso Nazionale di Bioingegneria 2010, 2010. 

A.  Ahluwalia, Tirella, A., and Vozzi, G., ?PAM2 System: a Modular Approach for the Realisation of Complex Shaped Scaffold Able to Reproduce the Main Features of a Specific Micro-environment,?, in 2010 International Conference on Biofabrication, 4-6 October 2010, Philadelphia, USA, 2010. 

A.  Tirella, Orsini, A., Vozzi, G., and Ahluwalia, A., ?A phase diagram for microfabrication of geometrically controlled hydrogel scaffolds?, Biofabrication, vol. 1, p. 045002, 2009 [Online]. Available: http://www.ncbi.nlm.nih.gov/pubmed/20811111

C.  De Maria, Tirella, A., Ahluwalia, A., and Vozzi, G., ?Pneumatic module of PAM2 microfabrication system: realization of bio-inspired complex scaffolds?, in 3B International Conference in Bioprinting and Biofabrication, Bordeaux, France, 2009. 

M.  Mattioli-Belmonte, Fantauzzi, V., KYRIAKIDOU, K., Tirella, A., Ahluwalia, A., and Vozzi, G., ?PAM Composite Scaffold of PCL and Carbon NanoTubes for Bone Tissue Regeneration?, in National Conference of Bioengineering, Pisa, Italy, 2008, p. 369.