Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Peter Järver and Ülo Langel,Cell-penetrating peptides—A brief introduction,Biochimica et Biophysica Acta (BBA) - Biomembranes,0005-2736,Elsevier BV,2006-03,1758,3,260-263,https://cir.nii.ac.jp/crid/1361699994589052928,https://doi.org/10.1016/j.bbamem.2006.02.012