@article{006248733, title = "Radiation biological investigations with multi cellular spheroids as an in vitro tumor model part 3 comparative investigations of single cell survival after irradiation of v 79 4 multi cellular spheroids with x rays or fast neutrons", author = "Kopp, J.", year = "1978", journal = "Studia Biophysica", volume = "70", number = "2", pages = "161-162", url = "https://eurekamag.com/research/006/248/006248733.php" }