/** * Add citation * * @param Citation $citation * @return $this */ public function addCitation(Citation $citation) { if (!$this->citations->contains($citation)) { $this->citations->add($citation); $citation->addArticle($this); } return $this; }
/** * Add citation * * @param Citation $citation * @return $this */ public function addCitation(Citation $citation) { $this->citations->add($citation); return $this; }