when this is necessary in order to construct, install, operate and maintain the network and associated infrastructure. (4) Unless this Act determines otherwise, in the cases referred to the preceding paragraph, ownership or other real rights to real estate owned by entities of public law shall be encumbered by easement under the procedure and in the manner laid down by the act governing the expropriation of real estate and the restriction of ownership rights, and the act governing real rights. (5) A natural person or legal entity that provides an electronic communications network that is not a network as referred to in Articles 16 and 17 of this Act and that wishes to carry out the works referred to in the first paragraph of this Article above or below real estate owned by an entity of public law may, in the procedure of establishing easement, act as the party entitled to easement. Article 19 (easement) (1) Under this Act, easement shall be a real right which, for the party entitled to easement referred to in Articles 16, 17 and 18 of this Act, comprises the following entitlements: 1. the construction, installation, operation and maintenance of an electronic communications network and associated infrastructure; 2. access to the electronic communications network and associated infrastructure for the purposes of the operation and maintenance thereof; 3. the removal of natural obstacles in the construction, installation, operation and maintenance of an electronic communications network. (2) An entitled party must exercise its entitlements referred to in the preceding paragraph so as to cause minimal disturbance to the owner of the real estate and place the least possible burden on the servient estate. If the owner of the real estate suffers damage in the exercise of these entitlements, the responsible party must compensate for the damage, in accordance with the Code of Obligations. Article 20 (establishment of easement) (1) Easement shall be established to the extent and for the period required for the construction, installation, operation and maintenance of an electronic communications network and for the period of operation of the electronic communications network and associated infrastructure. (2) For the purpose of establishing easement, the party entitled to easement shall submit a draft contract to the owner of the real estate. (3) A provision on the admissibility of the shared use of the communications facilities of the party entitled to easement by those parties and by other natural persons and legal entities that provide electronic communications networks in accordance with the provisions of this Act, and a provision on the amount of monetary compensation for the easement, shall be mandatory components of the contract. (4) The monetary compensation referred to in the preceding paragraph may not exceed the reduced value of the servient real estate or the actual damage and lost profit, including due to the admissibility of the shared use of the communications facilities of the party entitled to easement by those parties and by other natural persons and legal entities that provide electronic communications networks in accordance with the provisions of this Act, and to the restrictions on investors referred to in the first to third paragraphs of Article 13 of this Act