corrected bibtex interaction

lib/publications.ts

@@ -35,12 +35,10 @@ export function getPublicationsData(): Publication[] {
           : ''}},
 `;
       } else {
-        if (Array.isArray(value)) {
-          bibtexEntryString += `  ${key} = {${value.join(" ")}},
+                bibtexEntryString += `  ${key} = {${value}},
 `;
       }
     }
-    }
     bibtexEntryString += `}`
 
     const journalField = entry.fields.booktitle || entry.fields.journal;