?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Soonthornsaratoon%2C+T&rft.aufirst=T&rft.aulast=Soonthornsaratoon&rft.degree=Doctoral&rft.tpages=313&rft.inst=UCL+(University+College+London)&rft.title=Gradient-based+methods+for+quantitative+photoacoustic+tomography&rft.date=28+October+2014