Influence of media with different acidity on structure of FeNi nanotubesAlena Shumskaya, Egor Kaniukov, Maksim Kutuzau, Victoria Bundyukova, Dinara Tulebayeva, Artem Kozlovskiy, Daryn Borgekov, Inesh Kenzhina and Maxim ZdorovetsEPJ Web Conf., 177 (2018) 01003DOI: https://doi.org/10.1051/epjconf/201817701003