@article{ea62f4c92db14e31ae0b25794f2bdf62,
title = "Improved contrast in ultra-low-field MRI with time-dependent bipolar prepolarizing fields: theory and NMR demonstrations",
author = "Nieminen, \{Jaakko O.\} and Jens Voigt and Stefan Hartwig and Scheer, \{Hans Juergen\} and Martin Burghoff and Lutz Trahms and Ilmoniemi, \{Risto J.\}",
year = "2013",
language = "English",
volume = "20",
pages = "327--336",
journal = "Metrology and Measurement Systems",
issn = "2080-9050",
publisher = "Polish Academy of Sciences",
number = "3",
}