Morgan, Karen (Nov 2000). "Experimental and theoretical evaluation of microbubble behavior: effect of transmitted phase and bubble size". IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 47 (6): 1494–1509. doi:10.1109/58.883539. PMID18238696. S2CID22520633.
Morgan, Karen (Nov 2000). "Experimental and theoretical evaluation of microbubble behavior: effect of transmitted phase and bubble size". IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 47 (6): 1494–1509. doi:10.1109/58.883539. PMID18238696. S2CID22520633.
Morgan, Karen (Nov 2000). "Experimental and theoretical evaluation of microbubble behavior: effect of transmitted phase and bubble size". IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 47 (6): 1494–1509. doi:10.1109/58.883539. PMID18238696. S2CID22520633.