SQL> create table test
  2  (id    number        primary key,
  3   title varchar2(20)
  4  );

Table created.

SQL> grant references on test to mike;

Grant succeeded.

SQL> connect mike/lion@ora10
Connected.
SQL> create table test_2
  2  (id     number   primary key,
  3   fk_id  number   constraint fk_mike_scott references scott.test (id),
  4   tel    varchar2(10)
  5  );

Table created.

SQL>