he collected and published noson's eight-volume magnum opus, "likutey halachot", as well as an expanded version of noson's "likutey etzot" (advice) with additional material from rebbe nachman's teachings, under the title, "likutey etzot hameshulash". altogether, the tcheriner rav authored about 20 works, including halakhic responsa. some were only seen by breslover hasidim in manuscript form before they were lost during world war ii. the ones that survive are: